economic infestation level 第1页

Influence of barnyardgrass (Echinochloa crusgalli) on the growth of double-cropping paddy rice and its economic threshold Economic threshold and critical period of competition of Flaveria bidentis Effects of Eupatorium adenophorum on the growth of cotton and its economic threshold Influence of Alternanthera philoxeroides on the growth of paddy rice and its economic threshold Influence of barnyardgrass, Echinochloa crusgalli, on the growth and yield of paddy rice and its economic threshold