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以2个超级稻品种培杂泰丰和玉香油占为材料,考察了不同机械精量穴直播密度对精量穴直播水稻产量的影响,结果表明,与人工撒播相比,水稻在4种精量穴直播密度(每667平方米分别插1.48万株、2.38万株、2.22万株、1.85万株)下均表现出较高的有效穗数、群体颖花量和产量水平。其中培杂泰丰在4种精量穴直播密度下分别增产69.07%、40.73%、34.34%和35.09%,玉香油占在4种精量穴直播密度下分别增产109.97%、45.14%、84.86%和46.32%。说明适宜的行距可提高精量穴直播水稻的收获指数,增加行距可提
The effects of direct mechanical densities of different mechanical precision points on the yield of direct seeding rice with precision points were investigated using two super rice cultivars mixed with Taifeng and jade oil. The results showed that compared with artificial seeding, The results showed that there were higher effective panicle number, population spikelet yield and yield level in each of the 24-year-olds with the highest density (49.000 lines per 667 square meters, 23,800 lines, 22,200 lines, and 18,500 lines). Among them, Pei Tai Tai Feng increased yield by 69.07%, 40.73%, 34.34% and 35.09% under the four kinds of precision hole direct seeding density respectively. The yield of jade sesame oil increased by 109.97%, 45.14% and 84.86% And 46.32%. This shows that the appropriate row spacing can improve the precision of direct seeding rice harvest index, increase row spacing can be mentioned