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本文研究了不同人工除草措施对水稻子实产量的影响。结果表明：（１）各种水田杂草对水稻的生育和单位面积子实产量影响很大。因此。拔除水田所有杂草可成倍地提高子实产量，（２）人工拔除稗草、雨久花和扁秆草也可大幅度地提高水稻产量，其效果与拔除所有杂草相同；（３）人工拔除稗草、雨久花和扁秆草中的任意两种，其增产效果要优于只拔除其中任意一种；（４）仅拔除雨久花或扁秆草可明显提高子实产量，但仅拔除稗草与不拔除草的子实产量差异不显著。
In this paper, the effects of different artificial weeding measures on the yield of rice were studied. The results showed that: (1) Weeds of various paddy fields had a great influence on the fertility and yield per unit area of rice. therefore. The removal of all the weeds in the paddy field could increase the yield of seed doubled. (2) Artificial plucking of barnyardgrass, paeonia lactiflora and narcissus grass can also greatly increase the yield of rice with the same effect as removing all the weeds; (3) Artificial removal of barnyardgrass, rain long flowers and flat grass in any two, the yield is better than just pulling any one of them; (4) only the removal of long-flowering or flat straw grass can significantly increase the yield of fruit, However, there was no significant difference in the seed yield of barnyard grass and unpwelling weed only.