论文部分内容阅读
光照条件及无机营养是影响谷子(粟)结实的重要生态因子.从抽穗到抽穗后20天遮光处理对谷子结实有严重影响.用1层、2层和3层纱布遮光,秕谷率分别增高6.18%、25.67%和37.56%,成粒数分别减少33.44%、43.56%和63.08%.遮光程度和秕谷率、成粒数的相关系数分别为0.98和-0.98.氮素营养水平与颖花数、秕谷率的相关系数分别为0.9699和-0.9798.氮素营养在谷子抽穗前18天和抽穗后20天对结实影响最大,此时提高氮素营养水平,秕谷率比对照降低7.22%和9.87%.氮素营养对结实的影响同时也受降水的制约.磷、钾、硼等元素对谷子结实也有明显的影响.本文从生理上分析了光照条件和无机营养对谷子结实的影响.
Light conditions and inorganic nutrition are important ecological factors that affect the fruiting of millet (millet) .Flowering from 20 days after heading to heading had a serious impact on the fruiting of millet.With 1 layer, 2 layers and 3 layers of gauze shading, 6.18%, 25.67% and 37.56% respectively, the number of grains decreased by 33.44%, 43.56% and 63.08%, respectively.The correlation coefficients of shading degree, The correlation coefficient of the number of tamarisse valley was 0.9699 and -0.9798, respectively.Nitrogen nutrition had the greatest effect on the grain-filling of 18 days before heading and 20 days after heading, at this time, the nitrogen nutrition level was increased and the tamarisse rate was reduced by 7.22% And 9.87%, respectively.Nutritional effects of nitrogen nutrition were also affected by precipitation.Phosphorus, potassium, boron and other elements also had a significant impact on millet robustness.In this paper, the effects of light and inorganic nutrition on millet robustness were analyzed physiologically.