Topic: crop yield and soil fertility - OpenAGRICOLA Search Results

1. A study of Brazilian cocoa production 1956

Published:: 1956
Author:: Mehrlich, F. P.
View in NAL's Catalog:: CAT30994408
Format:: Electronic

2. Title in original language not available.

Article Title:: Zemledelie
Author:: Emel'ianova, I.
View in NAL's Catalog:: CAIN729027837
Format:: Article

3. Como aumentar la produccion del maiz en el Valle del Rio Cauca (departamento del Valle)

Author:: Gomez-L, J.A.
View in NAL's Catalog:: CAIN709044391
Format:: Article

4. Crop residue removal effects on corn yield and fertility of a Norfolk sandy loam

Article Title:: Journal - Soil Science Society of America.
Author:: Karlen, D.L.
View in NAL's Catalog:: GUA84131668
Format:: Electronic

5. Title in original language not available.

Article Title:: Chung-hua nung yeh yen chiu = Journal of agricultural research of China.
Author:: Lian, S.
View in NAL's Catalog:: IND88055621
Format:: Article

6. Title in original language not available.

Article Title:: Vestnik sel'skokhoziaistvennoi nauki.
Author:: Klopotovskii, A.P.
View in NAL's Catalog:: IND85002642
Format:: Article

7. Title in original language not available.

Article Title:: Vestnik sel'skokhoziaistvennoi nauki.
Author:: Puponin, A.I.
View in NAL's Catalog:: IND85002795
Format:: Article

8. Title in original language not available.

Article Title:: Tutun = Tobacco.
Author:: Pashoski, D.
View in NAL's Catalog:: IND85012429
Format:: Article

9. Title in original language not available.

Article Title:: Agronomicheskie osnovy spetsializatsii sevooborotov / pod redaktsiei S.A. Vorob'eva i A.M. Chetvernia.
Author:: Loshakov, V.G.
View in NAL's Catalog:: IND88051517
Format:: Article

10. Title in original language not available.

Article Title:: Agronomicheskie osnovy spetsializatsii sevooborotov / pod redaktsiei S.A. Vorob'eva i A.M. Chetvernia.
Author:: Bolkunov, A.S.
View in NAL's Catalog:: IND88051544
Format:: Article

11. Title in original language not available.

Article Title:: Agrokhimiia.
Author:: Chumak, V.S.
View in NAL's Catalog:: IND88003588
Format:: Article

12. Title in original language not available.

Article Title:: Agrokhimiia.
Author:: Boiko, P.I.
View in NAL's Catalog:: IND88003589
Format:: Article

13. Title in original language not available.

Article Title:: Agrokhimiia.
Author:: Riadovoi, V.A.
View in NAL's Catalog:: IND88008528
Format:: Article

14. Title in original language not available.

Article Title:: Agrokhimiia.
Author:: Oleksenko, IU.F.
View in NAL's Catalog:: IND88008530
Format:: Article

15. Title in original language not available.

Article Title:: Agrokhimiia.
Author:: Gorbacheva, A.E.
View in NAL's Catalog:: IND88049972
Format:: Article

16. Management practices to increase yield and yield stability of pearl millet in Africa.

Article Title:: Proceedings of the International Pearl Millet Workshop : 7-11 April 1986, ICRISAT Center, India / sponsored by USAID Title XII (INTSORMIL) and (ICRISAT).
Author:: Fussell, L.K.
View in NAL's Catalog:: IND88057359
Format:: Article

17. Einfluss der N-dungung auf Ertragsentwicklung landwirtschaftlicher Kulturen und Veranderung des mineralischen N-Gehaltes im Boden bei achtjahrigen Dauerversuchen.

Article Title:: Zeitschrift fur Acker- und Pflanzenbau.
Author:: Knittel, H.
View in NAL's Catalog:: IND87101200
Format:: Article

18. Long-term effects of an oil pipeline installation on soil productivity.

Article Title:: Canadian journal of soil science = Revue canadienne de la science du sol.
Author:: Culley, J.L.B.
View in NAL's Catalog:: IND87106544
Format:: Article

19. Effects of different green manures and fodder crops on crop yields and phosphorus needs of potato-wheat systems in the north-western plains of India.

Article Title:: Experimental agriculture.
Author:: Sharma, R.C.
View in NAL's Catalog:: ADL88011113
Format:: Article

20. Producao de materia seca e absorcao de macronutrientes por cultivares de batata.

Article Title:: Horticultura brasileira.
Author:: Paula, M.B. de.
View in NAL's Catalog:: IND88038230
Format:: Article

21. Erfahrungen bei der Organisation des Pflanzenschutzes in den Erprobungsbetrieben fur die "Komplexen Verfahren zur Erhohung der Bodenfruchtbarkeit und der Ertage".

Article Title:: Nachrichtenblatt fur den Pflanzenschutz in der DDR.
Author:: Koppen, D.
View in NAL's Catalog:: IND87004303
Format:: Article

22. Grain yields of maize and the nitrogen contribution following Stylosanthes pasture in the Nigerian subhumid zone.

Article Title:: Experimental agriculture.
Author:: Mohamed Saleem, M.A.
View in NAL's Catalog:: ADL86070855
Format:: Article

23. Effect of legume intercropping on enrichment of soil nitrogen, bacterial activity and productivity of associated maize crops.

Article Title:: Experimental agriculture.
Author:: Singh, N.B.
View in NAL's Catalog:: ADL87018005
Format:: Article

24. The effect of liming on some chemical properties and maize production on a highly weathered Fiji soil.

Article Title:: Tropical agriculture.
Author:: Sing, Y.W.
View in NAL's Catalog:: ADL87033758
Format:: Article

25. Twenty years' results from a shade and fertilizer trial on Amazon cocoa (Theobroma cacao) in Ghana.

Article Title:: Experimental agriculture.
Author:: Ahenkorah, Y.
View in NAL's Catalog:: ADL87036874
Format:: Article

26. Soil fertility in relation to crop yields of sugarcane based cropping systems in north central India.

Article Title:: Zeitschrift fur Acker- und Pflanzenbau = Journal of agronomy and crop science.
Author:: Yadav, R.L.
View in NAL's Catalog:: IND86021496
Format:: Article

27. Stickstoffdungung zu Winterweizen bei reduzierter Bodenbearbeitung.

Article Title:: Zeitschrift fur Acker- und Pflanzenbau = Journal of agronomy and crop science.
Author:: Kopke, U.
View in NAL's Catalog:: IND86035232
Format:: Article

28. Relation of glasshouse-imposed stress tests to field yields in sweet potato.

Article Title:: Tropical agriculture.
Author:: Martin, F.W.
View in NAL's Catalog:: ADL86067972
Format:: Article

29. Soil chemical status and the prediction of sweet potato yields.

Article Title:: Tropical agriculture.
Author:: Goodbody, S.
View in NAL's Catalog:: ADL86067973
Format:: Article

30. Reakcija jare zobi (Avena sativa L.) i ozime razi (Secale cereale L.) u model pokusima na zbijenost tla i gnojidbu.

Article Title:: Poljoprivredna znanstvena smotra.
Author:: Butorac, A.
View in NAL's Catalog:: IND85010425
Format:: Article

31. Auswirkungen von Stoppelfruchtgrundungung und unterschiedllcher Bodenbearbeitung auf Bodenfruchtbarkeitskennziffern, Unkrautbesatz und Ertage eines snadigen Bodens bei Getreidedaueranbau.

Article Title:: Archiv fur Acker- und Pflanzenbau und Bodenkunde.
Author:: Kundler, P.
View in NAL's Catalog:: IND85075609
Format:: Article

32. Soil and climatic environment in the Caribbean region: yield reductions in pigeonpea due to drought, salinity, acidity, and alkalinity.

Article Title:: Adaptation of chickpea and pigeonpea to abiotic stresses : proceedings of the Consultants' Workshop held at ICRISAT Center, India, 19-21 December 1984 / organized by the ICRISAT.
Author:: Ariyanayagam, R.P.
View in NAL's Catalog:: IND88056929
Format:: Article

33. Effect of different green manuring croping on available nitrogen in soil and yield of wheat.

Article Title:: J N K V V research journal.
Author:: Bansal, K.N.
View in NAL's Catalog:: ADL87075671
Format:: Article

34. Costs, returns, and profitability of crop rotation under peasant conditions.

Article Title:: Bulletin of rural economics and sociology.
Author:: Oluwasanmi, H.A.
View in NAL's Catalog:: ADL87076647
Format:: Article

35. Commercial fertilizer experiments with non-irrigated corn and sorghum in eastern Colorado in 1953.

Article Title:: General series - Colorado State University Experiment Station.
Author:: Greb, B.W.
View in NAL's Catalog:: ADL87076663
Format:: Article

36. Stubble mulch fallow and dates of primary sweep tillage on soil water storage.

Article Title:: Progress report - Colorado Experiment Station.
Author:: Greb, B.W.
View in NAL's Catalog:: ADL87076739
Format:: Article

37. Plant production.

Article Title:: Miscellaneous papers - Landbouwhogeschool Wageningen.
Author:: Wit, C.T. de.
View in NAL's Catalog:: ADL87076754
Format:: Article

38. Forage yield and nitrogen partitioning responses of alfalfa to two cutting regimes and three soil nitrogen regimes.

Article Title:: Crop science.
Author:: Trimble, M.W.
View in NAL's Catalog:: ADL87079002
Format:: Article

39. Effects of lupins on soil fertility.

Article Title:: Proceedings of the fourth International Lupin Conference : August 15-22, 1986, Geraldton, Western Australia / organised by the International Lupin Assoc. in collaboration with the Western Australian Dep. of Agriculture.
Author:: Rowland, I.C.
View in NAL's Catalog:: IND87075861
Format:: Article

40. Status and effects of micronutrients on the yield of paddy in different agro-climatic regions of Nepal.

Article Title:: Nepal Himalaya : geo-ecological perspectives / editor, S.C. Joshi, co-editors, Martin J. Haigh ... [et al.].
Author:: Tripathi, B.P.
View in NAL's Catalog:: IND87077707
Format:: Article

41. Crop husbandry and the yield of cotton in northern Nigeria.

Article Title:: Samaru research bulletin.
Author:: Lawes, D.A.
View in NAL's Catalog:: ADL87079984
Format:: Article

42. Soil fertility under continuous cultivation in northern Nigeria. II. Responses to fertilizers in the absence of organic manures.

Article Title:: Samaru research bulletin.
Author:: Heathcote, R.G.
View in NAL's Catalog:: ADL87080014
Format:: Article

43. Effect of Basic-H on vegetable and agronomic crops and soil fertility at Pt. MacKenzie.

Article Title:: Agroborealis - Alaska Agricultural and Forestry Experiment Station, Univeristy of Alaska-Fairbanks.
Author:: Laughlin, W.M.
View in NAL's Catalog:: ADL87080906
Format:: Article

44. Effects of soil fertility on growth, tuber yield, nodulation and nitrogen fixation of yam bean (Pachyrhizus erosus (L.) Urban) grown on a Typic Eutrustox.

Article Title:: Journal of plant nutrition.
Author:: Lynd, J.Q.
View in NAL's Catalog:: ADL87081367
Format:: Article

45. The potential contribution of some forage crops to the nitrogen budget and animal feed in the Sudan Gezira farming system.

Article Title:: Potentials of forage legumes in farming systems of Sub-Saharan Africa : proceedings of a workshop held at ILCA, Addis Ababa, Ethiopia, 16-19 September 1985 / edited by I. Haque, S. Jutzi, P.J.H. Neate.
Author:: Ayoub, A.T.
View in NAL's Catalog:: IND87075937
Format:: Article

46. Nitrogen and phosphorus transfers in a crop-livestock system in West Africa.

Article Title:: Agricultural systems.
Author:: Powell, J.M.
View in NAL's Catalog:: ADL87097246
Format:: Article

47. Limitations to the growth of highly productive low-alkaloid plants of Lupinus luteus.

Article Title:: Schriftenreihe der Gesellschaft fur Technische Zusammenarbeit.
Author:: Kholodov, A.G.
View in NAL's Catalog:: IND87098557
Format:: Article

48. The present use and efficiency of fertilisers and their future potential in agricultural production systems.

Article Title:: Environment and chemicals in agriculture : proceedings of a symposium held in Dublin, 15-17 October 1984 / edited by F.P.W. Winteringham.
Author:: Cooke, G.W.
View in NAL's Catalog:: IND87103708
Format:: Article

49. Soil fertility studies with forage legumes.

Article Title:: Report of projects - Louisiana Agricultural Experiment Station, Department of Agronomy.
Author:: Robinson, D.L.
View in NAL's Catalog:: IND88014111
Format:: Article

50. Cultural practice and soil fertility research with sugarcane in Louisiana in 1987.

Article Title:: Report of projects - Louisiana Agricultural Experiment Station, Department of Agronomy.
Author:: Ricaud, R.
View in NAL's Catalog:: IND88014124
Format:: Article

51. Use of sulfur compounds for soil and irrigation water treatments.

Article Title:: Agronomy.
Author:: Stroehlein, J.L.
View in NAL's Catalog:: IND88019717
Format:: Article

52. Productivity losses from soil erosion on dry cropland in the intermountain area.

Article Title:: Journal of soil and water conservation.
Author:: Massee, T.W.
View in NAL's Catalog:: IND88028072
Format:: Article

53. The effect of plant and animal waste combinations on intercropping yields in a tropical environment.

Article Title:: Biological agriculture and horticulture : an international journal.
Author:: Agbim, N.N.
View in NAL's Catalog:: ADL88032963
Format:: Article

54. Edaphic limitations and soil nutrient requirements of legume-based forage systems in tropical areas.

Article Title:: Forage legumes for energy-efficient animal production : proceedings of a trilateral workshop held in Palmerston North, New Zealand, April 30-May 4, 1984 / edited by Robert F. Barnes ... [et al.].
Author:: Helyar, K.R.
View in NAL's Catalog:: IND88031137
Format:: Article

55. The effect of sawdust mulch and increasing levels of nitrogen on the weed growth and yield of false horn plantains (Musa ABB).

Article Title:: Biological agriculture and horticulture.
Author:: Obiefuna, J.C.
View in NAL's Catalog:: ADL86065575
Format:: Article

56. Long-term trends in fertility of soils under continuous cultivation and cereal cropping in southern Queensland. I. Overall changes in soil properties and trends in winter cereal yields.

Article Title:: Australian journal of soil research.
Author:: Dalal, R.C.
View in NAL's Catalog:: ADL87005177
Format:: Article

57. Soil organic matter, effects on soils and crops.

Article Title:: Soil use and management.
Author:: Johnston, A.E.
View in NAL's Catalog:: IND87001696
Format:: Article

58. Review of the constraints to maize production in the communal areas in Natural Regions III, IV and V.

Article Title:: Zimbabwe agricultural journal.
Author:: Mataruka, D.F.
View in NAL's Catalog:: ADL87010018
Format:: Article

59. Soil lab comparison studies prompt controversy, changes.

Article Title:: Successful farming.
Author:: Holmberg, M.
View in NAL's Catalog:: ADL87011182
Format:: Article

60. Sulphur fractions in Krishna Western Delta alluvium in relation to blackgram production.

Article Title:: Andhra agricultural journal.
Author:: Praveenkumar, B.V.
View in NAL's Catalog:: ADL87011710
Format:: Article

61. Soil test crop response studies for targeted sugarcane yield.

Article Title:: Andhra agricultural journal.
Author:: Balaguravaiah, D.
View in NAL's Catalog:: ADL87011741
Format:: Article

62. Effect of fertilizers on the yield and chemical composition of pure sown white clover and on soil nutrient status.

Article Title:: Grass and forage science.
Author:: Evans, D.R.
View in NAL's Catalog:: ADL87014467
Format:: Article

63. Effect of seeding date, plant density, moisture availability and soil nitrogen fertility on maize kernel breakage susceptibility.

Article Title:: Crop science.
Author:: Bauer, P.J.
View in NAL's Catalog:: ADL87019193
Format:: Article

64. Influence of phosphorus and nitrogen on celery.

Article Title:: California agriculture - California Agricultural Experiment Station.
Author:: Post, S.E.C.
View in NAL's Catalog:: ADL86080228
Format:: Article

65. Nutrient imbalance and low crop yields in the humid tropics.

Article Title:: Agriculture international.
Author:: Kayode, G.O.
View in NAL's Catalog:: ADL87022416
Format:: Article

66. Potash boosts alfalfa yields and nutrient uptake on a low fertility soil.

Article Title:: Better crops with plant food.
Author:: Walker, W.M.
View in NAL's Catalog:: IND87021332
Format:: Article

67. Bahiagrass response to lime and nitrogen under pines.

Article Title:: Agronomy journal.
Author:: Teare, I.D.
View in NAL's Catalog:: ADL87029401
Format:: Article

68. Nitrogen contribution to succeeding corn from alfalfa and red clover.

Article Title:: Agronomy journal.
Author:: Bruulsema, T.W.
View in NAL's Catalog:: ADL87029420
Format:: Article

69. The effect of elemental sulfur, gypsum and ammonium thiosulfate as sulfur sources on yield of rapeseed.

Article Title:: Communications in soil science and plant analysis.
Author:: Swan, M.
View in NAL's Catalog:: ADL87029466
Format:: Article

70. Preliminary DRIS norms for alfalfa in the Southeastern United States and a comparison with Midwestern norms.

Article Title:: Agronomy journal.
Author:: Walworth, J.L.
View in NAL's Catalog:: ADL87031041
Format:: Article

71. The effect of fertilizer, chicken manure and dairy manure on timothy yield, tissue composition and soil fertility.

Article Title:: Agricultural wastes.
Author:: Warman, P.R.
View in NAL's Catalog:: ADL87039422
Format:: Article

72. Nitrogen availability in a Darling Downs soil following cereal, oilseed and grain legume crops. 2. Effects of residual soil nitrogen and fertiliser nitrogen on subsequent wheat crops.

Article Title:: Australian journal of experimental agriculture.
Author:: Strong, W.M.
View in NAL's Catalog:: ADL87039651
Format:: Article

73. Tillage practices and the growth and yield of wheat in southern New South Wales: Lockhart, in a 450 mm rainfall region.

Article Title:: Australian journal of experimental agriculture.
Author:: Mason, I.B.
View in NAL's Catalog:: ADL87040031
Format:: Article

74. Effect of zinc application on the yield and its attributes of lentil grown on zinc deficient soil.

Article Title:: LENS, Lentil Experimental News Service newsletter.
Author:: Gangwar, K.S.
View in NAL's Catalog:: ADL87040071
Format:: Article

75. Potato response to soil and fertilizer nitrogen.

Article Title:: Vegetable growers news.
Author:: Evanylo, G.K.
View in NAL's Catalog:: IND87038067
Format:: Article

76. Sorghum yield and soil analysis from sludge-amended calcareous iron-deficient soil.

Article Title:: Agronomy journal.
Author:: McCaslin, B.D.
View in NAL's Catalog:: ADL87050675
Format:: Article

77. Fertility can help stretch available soil moisture.

Article Title:: Better crops with plant food.
Author:: Decker, A.M.
View in NAL's Catalog:: IND87052221
Format:: Article

78. Crop response to lime in the northeastern United States.

Article Title:: Agronomy : A series of monographs - American Society of Agronomy.
Author:: Lathwell, D.J.
View in NAL's Catalog:: IND87053654
Format:: Article

79. Influence of fertilizers on corn growth, development, and green matter yield.

Article Title:: Problems of desert development.
Author:: Ibragimov, A.S.
View in NAL's Catalog:: ADL87064008
Format:: Article

80. Effects of sewage sludge on yield and quality of wheat grain and straw in an arid environment.

Article Title:: Desert plants.
Author:: Day, A.D.
View in NAL's Catalog:: ADL87071992
Format:: Article

81. Studies on row arrangement and population densities of potato cultivars in a sugarcane and potato intercropping system in north central India.

Article Title:: Experimental agriculture.
Author:: Verma, R.S.
View in NAL's Catalog:: ADL86009579
Format:: Article

82. Effects of lupin-wheat rotations on soil fertility, crop disease and crop yields.

Article Title:: Australian journal of experimental agriculture and animal husbandry.
Author:: Reeves, T.G.
View in NAL's Catalog:: IND86005891
Format:: Article

83. Lucerne responses to lime and interactions with other nutrients on granitic soils.

Article Title:: Australian journal of experimental agriculture.
Author:: Crocker, G.J.
View in NAL's Catalog:: IND86006617
Format:: Article

84. Responses of citrus (Citrus sinensis) to nitrogen-phosphorus-potassium (NPK) fertiliser on 2 soils of Rarotonga, Cook Islands. 2. Effects of NPK fertiliser rate, soil properties, and leaf nutrient levels on yield and tree size.

Article Title:: New Zealand journal of agricultural research.
Author:: Hume, L.J.
View in NAL's Catalog:: ADL86027848
Format:: Article

85. Description of data collection sites and methods. E. Northern Great Plains; spring wheat.

Article Title:: ARS - United States Department of Agriculture, Agricultural Research Service.
Author:: Bauer, A.
View in NAL's Catalog:: IND86027300
Format:: Article

86. Use of boundary lines in establishing diagnostic norms.

Article Title:: Journal - Soil Science Society of America.
Author:: Walworth, J.L.
View in NAL's Catalog:: IND86032406
Format:: Article

87. Nutrient status of cotton growing soils in Guntur district of Andhra Pradesh.

Article Title:: Andhra agricultural journal.
Author:: Narasimha Rao, P.V.
View in NAL's Catalog:: ADL86036337
Format:: Article

88. Effect of phosphorus and rhizobium on groundnut.

Article Title:: Andhra agricultural journal.
Author:: Subba Rao, I.V.
View in NAL's Catalog:: ADL86036343
Format:: Article

89. The effect of soil nitrogen on grain legume yield and nitrogen fixation.

Article Title:: Journal of agricultural science.
Author:: Jessop, R.S.
View in NAL's Catalog:: IND86037290
Format:: Article

90. Models and modelling for soil test-crop response interpretation and fertiliser recommendations.

Article Title:: Advances in soil science.
Author:: Singh, K.D.
View in NAL's Catalog:: IND86040544
Format:: Article

91. Yields of perennial grasses growing in mixtures with annual species and the effect of perennials on total yields.

Article Title:: Australian journal of experimental agriculture.
Author:: Hill, B.D.
View in NAL's Catalog:: ADL86044185
Format:: Article

92. Interactions of soil conditioner with other limiting factors to achieve high crop yields.

Article Title:: Soil science.
Author:: Wallace, A.
View in NAL's Catalog:: ADL86051094
Format:: Article

93. An evaluation of the Acacia albida-based agroforestry practices in the Hararghe highlands of Eastern Ethiopia.

Article Title:: Agroforestry systems.
Author:: Poschen, P.
View in NAL's Catalog:: ADL86052127
Format:: Article

94. Effect of nitrogen and farmyard manure on yield of crops, nutrients uptake and soil fertility in paddy-wheat rotation.

Article Title:: Indian journal of agricultural research.
Author:: Kaushik, R.D.
View in NAL's Catalog:: ADL86059395
Format:: Article

95. The effect of organic amendments on lowbush blueberry production.

Article Title:: Agricultural waste utilization and management : proceedings of the Fifth International Symposium on Agricultural Wastes, December 16-17, 1985, Hyatt Regency Chicago, Illinois Center, Chicago, Illinois.
Author:: Warman, P.R.
View in NAL's Catalog:: IND86057995
Format:: Article

96. Seasonal P uptake by corn under no-till and conventional-till management.

Article Title:: Communications in soil science and plant analysis.
Author:: Kunishi, H.M.
View in NAL's Catalog:: ADL86064198
Format:: Article

97. Use of a technical soil classification system in evaluation of corn and soybean response to deep tillage.

Article Title:: Soil Science Society of America journal.
Author:: Denton, H.P.
View in NAL's Catalog:: IND86076097
Format:: Article

98. Effect of plant geometry and fertility levels on the growth and yield of upland cotton.

Article Title:: Indian journal of agronomy.
Author:: Jain, S.C.
View in NAL's Catalog:: IND85009724
Format:: Article

99. Zinc requirement of different crops.

Article Title:: Indian farming.
Author:: Tiwari, K.N.
View in NAL's Catalog:: ADL85010957
Format:: Article

100. Effect of various long term soil fertility treatments on soybean yield and on some selected soil characteristics.

Article Title:: Madras agricultural journal.
Author:: Prasad, S.
View in NAL's Catalog:: IND85011850
Format:: Article

OpenAGRICOLA

Main content area

Limit your search

Format

Topic

Publish Date

Search

2203 Search Results

Search Results

1. A study of Brazilian cocoa production 1956

2. Title in original language not available.

3. Como aumentar la produccion del maiz en el Valle del Rio Cauca (departamento del Valle)

4. Crop residue removal effects on corn yield and fertility of a Norfolk sandy loam

5. Title in original language not available.

6. Title in original language not available.

7. Title in original language not available.

8. Title in original language not available.

9. Title in original language not available.

10. Title in original language not available.

11. Title in original language not available.

12. Title in original language not available.

13. Title in original language not available.

14. Title in original language not available.

15. Title in original language not available.

16. Management practices to increase yield and yield stability of pearl millet in Africa.

17. Einfluss der N-dungung auf Ertragsentwicklung landwirtschaftlicher Kulturen und Veranderung des mineralischen N-Gehaltes im Boden bei achtjahrigen Dauerversuchen.

18. Long-term effects of an oil pipeline installation on soil productivity.

19. Effects of different green manures and fodder crops on crop yields and phosphorus needs of potato-wheat systems in the north-western plains of India.

20. Producao de materia seca e absorcao de macronutrientes por cultivares de batata.

21. Erfahrungen bei der Organisation des Pflanzenschutzes in den Erprobungsbetrieben fur die "Komplexen Verfahren zur Erhohung der Bodenfruchtbarkeit und der Ertage".

22. Grain yields of maize and the nitrogen contribution following Stylosanthes pasture in the Nigerian subhumid zone.

23. Effect of legume intercropping on enrichment of soil nitrogen, bacterial activity and productivity of associated maize crops.

24. The effect of liming on some chemical properties and maize production on a highly weathered Fiji soil.

25. Twenty years' results from a shade and fertilizer trial on Amazon cocoa (Theobroma cacao) in Ghana.

26. Soil fertility in relation to crop yields of sugarcane based cropping systems in north central India.

27. Stickstoffdungung zu Winterweizen bei reduzierter Bodenbearbeitung.

28. Relation of glasshouse-imposed stress tests to field yields in sweet potato.

29. Soil chemical status and the prediction of sweet potato yields.

30. Reakcija jare zobi (Avena sativa L.) i ozime razi (Secale cereale L.) u model pokusima na zbijenost tla i gnojidbu.

31. Auswirkungen von Stoppelfruchtgrundungung und unterschiedllcher Bodenbearbeitung auf Bodenfruchtbarkeitskennziffern, Unkrautbesatz und Ertage eines snadigen Bodens bei Getreidedaueranbau.

32. Soil and climatic environment in the Caribbean region: yield reductions in pigeonpea due to drought, salinity, acidity, and alkalinity.

33. Effect of different green manuring croping on available nitrogen in soil and yield of wheat.

34. Costs, returns, and profitability of crop rotation under peasant conditions.

35. Commercial fertilizer experiments with non-irrigated corn and sorghum in eastern Colorado in 1953.

36. Stubble mulch fallow and dates of primary sweep tillage on soil water storage.

37. Plant production.

38. Forage yield and nitrogen partitioning responses of alfalfa to two cutting regimes and three soil nitrogen regimes.

39. Effects of lupins on soil fertility.

40. Status and effects of micronutrients on the yield of paddy in different agro-climatic regions of Nepal.

41. Crop husbandry and the yield of cotton in northern Nigeria.

42. Soil fertility under continuous cultivation in northern Nigeria. II. Responses to fertilizers in the absence of organic manures.

43. Effect of Basic-H on vegetable and agronomic crops and soil fertility at Pt. MacKenzie.

44. Effects of soil fertility on growth, tuber yield, nodulation and nitrogen fixation of yam bean (Pachyrhizus erosus (L.) Urban) grown on a Typic Eutrustox.

45. The potential contribution of some forage crops to the nitrogen budget and animal feed in the Sudan Gezira farming system.

46. Nitrogen and phosphorus transfers in a crop-livestock system in West Africa.

47. Limitations to the growth of highly productive low-alkaloid plants of Lupinus luteus.

48. The present use and efficiency of fertilisers and their future potential in agricultural production systems.

49. Soil fertility studies with forage legumes.

50. Cultural practice and soil fertility research with sugarcane in Louisiana in 1987.

51. Use of sulfur compounds for soil and irrigation water treatments.

52. Productivity losses from soil erosion on dry cropland in the intermountain area.

53. The effect of plant and animal waste combinations on intercropping yields in a tropical environment.

54. Edaphic limitations and soil nutrient requirements of legume-based forage systems in tropical areas.

55. The effect of sawdust mulch and increasing levels of nitrogen on the weed growth and yield of false horn plantains (Musa ABB).

56. Long-term trends in fertility of soils under continuous cultivation and cereal cropping in southern Queensland. I. Overall changes in soil properties and trends in winter cereal yields.

57. Soil organic matter, effects on soils and crops.

58. Review of the constraints to maize production in the communal areas in Natural Regions III, IV and V.

59. Soil lab comparison studies prompt controversy, changes.

60. Sulphur fractions in Krishna Western Delta alluvium in relation to blackgram production.

61. Soil test crop response studies for targeted sugarcane yield.

62. Effect of fertilizers on the yield and chemical composition of pure sown white clover and on soil nutrient status.

63. Effect of seeding date, plant density, moisture availability and soil nitrogen fertility on maize kernel breakage susceptibility.

64. Influence of phosphorus and nitrogen on celery.

65. Nutrient imbalance and low crop yields in the humid tropics.

66. Potash boosts alfalfa yields and nutrient uptake on a low fertility soil.

67. Bahiagrass response to lime and nitrogen under pines.

68. Nitrogen contribution to succeeding corn from alfalfa and red clover.

69. The effect of elemental sulfur, gypsum and ammonium thiosulfate as sulfur sources on yield of rapeseed.

70. Preliminary DRIS norms for alfalfa in the Southeastern United States and a comparison with Midwestern norms.

71. The effect of fertilizer, chicken manure and dairy manure on timothy yield, tissue composition and soil fertility.