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以晋黍9号为材料,研究了普通尿素和缓释尿素对糜子产量和品质的影响。结果表明:施氮处理的糜子蛋白质含量都显著大于对照,而淀粉含量都显著小于对照;产量以PN2(普通尿素150 kg·hm-2)最高,增产幅度为28.48%;产量与穗数和单株粒重达到极显著正相关,相关系数分别为0.81和0.62;糜子产量与籽粒蛋白质含量呈极显著正相关,相关系数为0.83,与籽粒淀粉含量呈显著负相关,相关系数为-0.44。本试验条件下,糜子产量的增加主要是通过增加穗数和单株粒重来实现的。以普通肥料N150 kg·hm-2为最适施氮量。研究表明不是所有土壤类型都适合施用缓释尿素,研究区为砂质土,保水保肥能力差,通气性好,施用普通尿素比缓释尿素效果好。
The effects of common urea and slow-release urea on the yield and quality of millet were studied with Jin-mil 9 as material. The results showed that the content of protein in the treated barley was significantly higher than that in the control, while the starch content was significantly lower than that in the control. The yield of PN was the highest (PN 150 kg · hm-2) and the yield was 28.48% The grain weight reached a very significant positive correlation with the correlation coefficients of 0.81 and 0.62 respectively. There was a significant positive correlation between grain yield and grain protein content with a correlation coefficient of 0.83 and a significant negative correlation with grain starch content with a correlation coefficient of -0.44. Under the experimental conditions, the increase of millet yield is mainly achieved by increasing the number of spikes and grain weight per plant. Nitrogen fertilizer was the most suitable for the general manure N150 kg · hm-2. The results showed that not all soil types were suitable for application of slow-release urea. The study area was sandy soil with poor water retention and fertility and good aeration. The application of common urea was better than that of slow release urea.