Intercropping cotton with green gram and cowpeas and its residual effect on succeeding wheat crop
1983
REP.MB-2939
Details
Title
Intercropping cotton with green gram and cowpeas and its residual effect on succeeding wheat crop
Author
Rao, R.B.R.
Sadaphal, M.N.
Sadaphal, M.N.
Publication Date
1983
Call Number
REP.MB-2939
Summary
A field experiment was conducted during the vegetation period 1976/1977 at Indian Agricultural Research Institute, New Delhi, to study the effects of intercropping cotton with green gram and cowpeas, planting dates of intercrops and planting dates of intercrops and planting patterns on seed cotton yield and NPK uptake by cotton. The residual effect of intercropping on the succeeding wheat crop was also investigated. The important findings are summarised as follows: Green gram as an intercrop did not reduce seed cotton yields. Cowpeas (grain and fodder) reduced the seed cotton yields due to their longer duration and smothering habit. The intercrop should have short duration and erect growth habit. Intercrops sown along with cotton (May) did not affect the seed cotton yields, but when the intercrops were sown in July (during the reproductive phase of cotton crop) the seed cotton yield decreased as a result of competition from these crops. Thus, cotton is vulnerable to competition during its reproductive phase. Paired row planting did not confer any advantage over solid row planting. Application of 45 and 90 kg N/ha increased the total biomass yield and nitrogen uptake but not seed cotton yield, over no nitrogen application. The NPK uptake by cotton was not affected by intercropping, planting dates of intercrops and planting patterns. Lint quality of cotton was not affected by intercropping, planting dates of intercrops, planting patterns and nitrogen levels. Intercropping had no residual effect on wheat grain yield. Sowing of intercrops in July and nitrogen applications to cotton increased wheat yields. [AS]
Journal Citation
v.152(3):199-207, ZEITSCHRIFT FUER ACKER-UND PFLANZENBAU
Contact Information
harvest@worldveg.org
Record Appears in
Research > Published Articles