Supplemental Nitrogen Fertilizer to Soybeans : II. Effect of application rate and placement on seed yield and protein yield
Supplemental Nitrogen Fertilizer to Soybeans : II. Effect of application rate and placement on seed yield and protein yield
复制标题
大豆补充氮肥：II。
DOI：
10.1626/jcs.56.329
复制
发表时间：
1987
影响因子：
--
通讯作者：
Y. Hirata
中科院分区：
文献类型：
--
作者：
H. Nakano;M. Kuwahara;I. Watanabe;Kousei Tabuchi;H. Naganoma;T. Higashi;Y. Hirata
氮肥作为硫酸铵施用于大豆[甘氨酸max (L.)]美林的简历。在开花阶段研究施用量和放置对种子产量和蛋白质产量的影响。在0gN/m2 ~ 18gN/m2范围内施氮可使“Bonminori”种子产量由306g/m2提高到360g/m2。结果表明，要使种子产量显著提高（20 ~ 30 g/m2），需要较高的施氮量。在根系发育不良、种子产量低的情况下，施氮对种子产量的影响显著。在“恩瑞”中，单侧施氮比两侧施氮的产量响应更大，深施（土壤深度40cm）比表面施氮的产量响应更大。籽粒含氮量随施氮量的增加而增加，其规律与籽粒产量相似。增加的主要原因是蛋白质氮含量增加。籽粒11S球蛋白与7S球蛋白的比值不受补氮提高籽粒蛋白质含量的影响。
Nitrogen fertilizer as ammonium sulfate was applied to soybeans [Glycine max (L.) Merrill cv. Bonminori and Enrei] at flowering stage to examine effects of application rate and placement on seed yield and protein yield. Seed yield of "Bonminori" was increased from 306g/m2 to 360g/m2 by the application of supplemental nitrogen in the range of 0gN/m2 to 18gN/m2. The result indicated that higher rate than that at basal application was required for the significant increase (20 to 30 g/m2 of seed yield. When development of roots was poor and seed yield was low without the supplemental nitrogen, the effect of the application on the seed yield was remarkable. In "Enrei", furrow placement of the supplemental nitrogen at one side of plant rows allowed the larger yield response than both-sided furrow placement and also as deep application (40cm deep in soil) did than surface application. Nitrogen content of seeds was also increased with application rates of the supplemental nitrogen in the similar way as seed yield. The increase was mainly due to increase of protein-nitrogen. Ratio of 11S globulin to 7S globulin of seeds was not affected by the increase of protein content caused by the application of the supplemental nitrogen.