Effect of intercropping and weed coiltrol on nutrient uptake and water use efficiency of pearlmillet (Pennisetum glaucum) under rainfed conditons
DOI:
https://doi.org/10.59797/ija.v47i4.3196Keywords:
Intercropping, Pearlmillet, Weed control, Nutrient uptake, Water use efficiencyAbstract
A field experiment was conducted during the rainy seasons of 1993 and 1994 to study the effect of intercropping and weed control measures on nutrient uptake and water use efficiency of pearlmillet [Pennisetum glaucum (L.) R. Br. emend. Stuntz]. Dry matter accumulation and N, P and K depletion by weeds and yield of pearlmillet did not differ due to intercropping. But greengram (Phaselous radiatus L.) as an intercrop gave higher yield than cowpea [Vigna unguiculata (L.) Walp.]. However, total uptake of N, P and K was influenced significantly by intercropping system, being maximum with pearlmillet greengram intercropping. This treatment also registered the highest water use efficiency. Dry matter accumulation and nutrients depletion by weeds were minimum under hand weeding twice closely, followed by pendimethalin at 0.75 kglha hand weeding 6 weeks after sowing. Consequently, these treatments were equally effective in improving grain yield and nutrients uptake and water use efficiency of crops. Pendimethalin at 0.75 kglha alone proved to be the least effective in these regards.References
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Kaushik, S.K. and Gautam, R.C. 1984. Weed con- trol studies in pearlmillet under rainfed condi- tions. Indian Journal of Agronomy 29 (1) : 31-36.
Kaushik, S.K. and Gautam, R.C. 1987. Effect of nitrogen and phosphorus on the production potential of pearlmillet cowpea or greengram intercropping system under rainfed conditions. Journal of Agricultural Science, Cambridge
: 361-364.
Kumar, D., Kaushik, S.K. and Gautam, R.C. 1995. Effect of soil moisture conservation and weed control on the nutrition and seed yield of pearlmillet (Pennisetwn glaucum) under rainfed conditions. Indian Journal of Agronomy 40 (4):604-608.
Legoke, S.T.O., Choudhary, A.H. and Chandra Singh, D.J. 1982. Chemical weed control in rainfed cowpea in Guinea savanna zone of Nigeria. Weed Research 22 (1) : 17-22.
Sandhu, K.S., Singh, T. and Gill, H.S. 1988. Her- bicidal control of weeds of pearlmillet for grain. Research Journal, Punjab Agricultural University, Ludhiana 25 (1) : 32-64.
