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weeds in SRI

The major weeds found in SRI system of paddy cultivation are Marsilia sp. , Echinocloa sp., Monochoris vagilalis, Cyprus iria and Cyprus deformis. The effective integrated weed management adopted are
1. Passing cono weeder at 10, 20, 30 and 40 days after transplanting OR
2. Application of pre-emergence herbicide like butachlor 50% EC @ 1500 g ai/ha 3 DAT + two cono weeding at 20 and 30 DAT.


Weed control


1. Spray 2, 4-D sodium salt 80 W.P. @ 2.5kg per /ha in 750 liters of water, 3-4 weeks after transplanting. Dicot weeds and some annual grasses and sedges to some extent are controlled. Avoid spray drift reaching to other susceptible crops such as cotton, grapes, peas, beans, potato and other cucurbits in the vicinity.


2. Broadcast 12kg Butachlor 5% granules in standing water of 1"-2" in the plot 5-7 days after transplanting or mix butachlor 50 E.C. 2.5 li

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