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研究了播种期(x1),基本苗数(x2),农家肥用量(x3)和氮肥用量(x4)对小麦产量及其构成因素的影响。结果表明:在本试验条件下,播种期是影响产量的第一重要因素,基本苗数以及农家肥用量是影响小麦产量的第二主导性因素;氮肥用量对小麦产量的影响不明显;播种期与氮肥之间,基本苗与农家肥用量以及与氮肥用量之间对产量有显著的互作。利用电子计算机模拟选优,筛选出单产>320kg/666.7m2的优化农艺方案:播种期10月24~10月26日,基本苗15.914~18.569万/666.7m2,农家肥1589.4~1870.4kg/666.7m2,氮肥用量7.3928~9.1593kg/666.7m2。分析了各农艺因素对产量构成因素的影响,提出了高产小麦的生育要求和群体结构指标。
The effects of sowing date (x1), basic seedlings (x2), farmer fertilizer (x3) and nitrogen fertilizer (x4) on the yield and its components of wheat were studied. The results showed that the sowing date was the first important factor affecting the yield under the experimental conditions. The basic seedling number and the amount of farmhouse manure were the second dominant factor affecting the wheat yield. The effect of nitrogen fertilizer on wheat yield was not obvious. And nitrogen fertilizer, the basic seedling and farmyard manure and the amount of nitrogen fertilizer production between the significant interaction. Optimized agronomic options with yield> 320kg / 666.7m2 were selected by computer simulation. The sowing date ranged from October 24 to October 26, with the basic seedlings ranging from 15.914 to 18.569 million / 666.7m2 and farmer fertilizer 1589 .4 ~ 1870.4kg / 666.7m2, the amount of nitrogen fertilizer 7.3928 ~ 9.1593kg / 666.7m2. The effects of agronomic factors on yield components were analyzed. The fertility requirements and population structure indicators of high yield wheat were put forward.