Effect of intercropping systems of buckwheat and lathyrus on soil physico-chemical properties and biological efficiency in rice fallow land under organic ecosystem
Intercropping effects on soil properties in rice fallow
Keywords:
NPK, Buckwheat, Lathyrus, Intercropping, YieldAbstract
The experiment was conducted at Assam Agricultural University, Jorhat with Buckwheat variety “Local” and Lathyrus variety “Ratan” during the rabi season of 2017-18 with the aim “Effect of intercropping systems of buckwheat and lathyrus on soil physico-chemical properties and biological efficiency in rice fallow land under organic ecosystem” in Randomized Block Design with three replication.The experiment revealed that soil was sandy loam with organic carbon (0.77 %) and initial nutrient content such as N (296.56 kg/ha), P2O5 (34.88 kg/ha) and K2O (148.32 kg/ha). In respect of land equivalent ratio (LER), T8 [Buckwheat + Lathyrus as grain (2:2)]; T9 [Buckwheat + Lathyrus as fodder (2:2)] and T5 [Buckwheat + Lathyrus as fodder (1:1)] was found best over the sole cropping. After harvest of the crops the soil health was not affected in respect of available N, P and K content and organic carbon. T8 [Buckwheat + Lathyrus as grain (2:2)] was found to be the best in respect of, LER values indicating intercrop advantage, buckwheat equivalent yield, biological efficiency and B:C (2.48).
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