37. Intercropping of rainfed groundnut (arachis hypogaea) with annual oilseed crops under different planting patterns.
India J. of Agricultural Sciences, 61, (5), 1991, pp. 299-302
An experiment was conducted to evaluate the intercropping systems with oilseed crops, viz. sunflower (Helianthus annuus L.), sesame (Sesamum indicum L.) and castor (Ricinus communis L.) with groundnut by changing the crop geometry without reducing its plant population.
The experiment was conducted during the rainy seasons of 1986 and 1988.
The soil was clay loam, having organic carbon 0.96%, low available P (5.6 kg/ha) and medium available K (165.2 kg/ha). The experiment was laid out in randomized block design with 3 replications.
Groundnut (Arachis hypogaea L.) is grown mostly under rainfed conditions during rainy season. The wider spacing recommended for cultivation of groundnut made it possible to grow an intercrop with many other annual oilseed crops. Intercropping with groundnut increases production and monetary returns compared with sole cropping. Selection of proper plant geometry and compatible crops in an intercropping system is highly beneficial. With the availability of new high-yielding, short-duration varieties of oilseed crops having different types of canopy structure, it is possible to design the suitable intercropping system with groundnut.
In this experiment the intercropping system increased the oil yield (30.5%) and monetary returns (15.3%) compared with the sole crop of groundnut. By growing castor in the intercropping system, the maximum loss in yield was of groundnut pods (22.3%), followed by sunflower (14.8%) and sesame (9.4%). Irrespective of the cropping system and season, the paired-row planting consistently gave higher yield (23.4%) of groundnut than the normal planting.
Pooled data on monetary returns showed significant differences in both the years. Groundnut (paired-row) + sunflower recorded 18.8 and 34.3% higher returns than the sole groundnut planted under paired-row and normal planting respectively. Thus the study revealed that intercropping of groundnut (paired-row) with sunflower could be recommended for getting higher oil yield and monetary returns in the Saurashtra region of Gujarat.
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Asia, Philippines, IRRI, field trials, intercropping, rice, mungbean, plant interactions
AGGARWAL, P.K. et al.
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