稗草对不同种植密度水稻生长和产量的影响

Effect of barnyard grass on dry matter production and yield of rice with different densities

用一定密度的稗草与高中低 3种密度的水稻混合种植 ,结果表明 :低密度处理的分蘖数显著高于高密度处理的分蘖数 ,而高密度处理的叶面积指数和单位面积干物重显著高于低密度处理的叶面积指数和单位面积干物重。单位面积产量在试验条件下随水稻密度的增加而增加 。

Through the mixture planting with one density barnyard grass and three densities rice,the results was found that the tillers of low density rice were more than that of high density rice significantly,and the LAI and the dry matter weight of high density rice were bigger than that of low density rice,and the yield was high if the density was high under this expriment condition.