Volume 33, Issue 2 | Nutrient Cycling in Agroecosystems

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Volume 33, Issue 2

November 1992

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9 articles in this issue

Impact of rice straw management practices on yield, nitrogen uptake and soil properties in a wheat-rice rotation in northern India
T. S. Verma
R. M. Bhagat
OriginalPaper Pages: 97 - 106
Increasing urea-N efficiency for transplanted lowland rice by pneumatic injection: Yield and economics at the farm level
J. H. M. Scholten
OriginalPaper Pages: 107 - 114
Methane production from anaerobic soil amended with rice straw and nitrogen fertilizers
Zhengping Wang
Ronald D. Delaune
William H. Patrick Jr.
OriginalPaper Pages: 115 - 121
Leaching of nitrate, calcium and magnesium under maize cultivation on an oxisol in Togo
R. Poss
H. Saragoni
OriginalPaper Pages: 123 - 133
Development and evaluation of an improved soil test for phosphorus. 2. Comparison of the Olsen and mixed cation-anion exchange resin tests for predicting the yield of ryegrass grown in pots
S. Saggar
M. J. Hedley
I. S. Cornforth
OriginalPaper Pages: 135 - 144
Predicting plant yields using soil testing for phosphorus: Effects of error in the estimation of the maximum yield on interseasonal comparisons of yield prediction
M. D. A. Bolland
R. J. Gilkes
OriginalPaper Pages: 145 - 153
The effect of clay on gypsum filterability in the nitrophosphate process
J. T. Tinge
OriginalPaper Pages: 155 - 160
The effect of water supply on the response of subterranean clover, annual medic and wheat to superphosphate applications
M. D. A. Bolland
OriginalPaper Pages: 161 - 175
Solar evaporation of aqueous wastes from fertilizers/ag-chemical dealerships
Doris H. Ash
David G. Salladay
Gerald R. Guinn
OriginalPaper Pages: 177 - 185