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随着水稻轻型栽培技术的推广，我市水稻由原来的大苗移栽为主，逐步发展为以小苗抛栽为主体的新格局。与大苗移栽田相比，小苗抛栽的本田期明显延长，同时也使稻田杂草的发生期相应延长。为搞好这类稻田的化学除草，明确小苗抛栽稻田化除次数对产量的影响，1997年开展了抛秧稻?
With the popularization of light rice cultivation techniques, the rice from the original transplanting of the main seedlings, and gradually developed into a new pattern of seedling throwing as the main body. Compared with the transplanting of seedlings, the duration of transplanting of seedlings was significantly prolonged, and the occurrence of weeds in paddy fields was prolonged accordingly. In order to improve the chemical weed control of such rice fields, a clear number of seedlings thrown in addition to the number of paddy fields in addition to the impact on the yield, launched in 1997 thrown rice?