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种水稻可用大型播种机直接播种。但由于是干整地，干播种，上水后地不平，保水困难，对杂草发生有利。对水田化除来说，最重要的条件是地要平，并能保得住水，才能发挥较好除草效果。因此有必要对早直播稻化学除草诸方案进行评价，现将１９９６年评价试验报告如下。１材料和方
Rice can be planted directly with large planter. However, because it is dry and dry, dry seeding, unequal after Sheung Shui, water retention difficulties, the occurrence of weeds is beneficial. In addition to the paddy fields, the most important condition is that the ground should be flat and can hold water, in order to play a better weeding effect. Therefore, it is necessary to evaluate the direct seeding rice chemical herbicides programs. The evaluation report of 1996 is as follows. 1 material and side