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Effect of Drain Spacing and Phosphorus Levels on Yield, Chemical Composition and Uptake of Nutrients by Indian Mustard (Brassica juncea)

Published online by Cambridge University Press:  03 October 2008

K. N. Singh ,
Anand Swarup ,
D. P. Sharma  and
K. V. G. K. Rao
K. N. Singh
Affiliation:
Central Soil Salinity Research Institute, Karnal 132001, India
Anand Swarup
Affiliation:
Central Soil Salinity Research Institute, Karnal 132001, India
D. P. Sharma
Affiliation:
Central Soil Salinity Research Institute, Karnal 132001, India
K. V. G. K. Rao
Affiliation:
Central Soil Salinity Research Institute, Karnal 132001, India
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Summary

Field experiments during the winter seasons of 1986–7 and 1987–8 studied the effect of three sub-surface drain spacings and three levels of phosphorus on the yield, chemical composition and uptake of nutrients by Indian mustard (Brassica juncea). The number of siliquae m-2 and seed yield decreased with increasing drain spacing. Application of phosphorus increased seed yield and yield attributes. The concentrations of nitrogen, phosphorus and potassium in the seed and stalks decreased and those of sodium, calcium and magnesium increased with increasing drain spacing, but application of phosphorus increased the concentration of these nutrients in the seed and stalks. Absence of phosphorus in the drain water effluent and the level of available phosphorus in the soil profile after crop harvest indicated very slow movement of phosphorus, most of which was retained in the top 30 cm of soil.

Type
Research Article
Information
Experimental Agriculture , Volume 28 , Issue 2 , April 1992 , pp. 135 - 142
Copyright
Copyright © Cambridge University Press 1992

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References

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