Effect of different crop establishment methods on rice and implication of soil physical properties
2008
Singh, Shailendra | Singh, Govindra
The grain yield of rice, on an average, in all the three rice establishment methods was similar (5693, 5689 and 5684 kg ha-1 in DSR, WSR and TPR, respectively) when weeds were controlled using herbicide followed by two hand weedings. Variation in crop growth parameters were observed, with more number of panicle per unit area in WSR followed by DSR and TPR. The number of grains per panicle was highest in TPR followed by DSR and WSR. Less panicle number in the transplanted rice crop was compensated by larger panicle and more number of grains per panicle and vice-versa in case of DSR and WSR. Root number when expressed in percentage in different layers, TPR had highest percentage of roots in 0-10 cm followed by DSR and WSR. In 10-20 cm, DSR had higher number of roots followed by TPR and WSR. At rice harvest in puddled fields the bulk density in 0-7 cm and 12-19 cm soil layer was higher and infiltration rate was lower as compared to unpuddled field.
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Este registro bibliográfico ha sido proporcionado por Indian Council of Agricultural Research