Effect of deep placement of controlled release nitrogen fertilizer (coated urea) on growth, yield, and nitrogen fixation of soybean plants
Effect of deep placement of controlled release nitrogen fertilizer (coated urea) on growth, yield, and nitrogen fixation of soybean plants
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控释氮肥（包膜尿素）深施对大豆生长、产量及固氮的影响
DOI：
10.1080/00380768.1991.10415032
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发表时间：
1991
影响因子：
2
通讯作者：
T. Ohyama
中科院分区：
文献类型：
--
作者：
Yoshihiko Takahashi;Toshiaki Chinushi;Y. Nagumo;T. Nakano;T. Ohyama
摘要本研究旨在提高大豆[Glycine max（L.）Merr. CV.通过施用控释氮肥，获得了品质优良的玉米。在新泻的排水稻田改造成的高地中种植大豆。施肥处理如下：（a）对照，常规基施硫酸铵（16 kg N/ha）;（B）深施，深施包膜尿素，100天型（100 kg N/ha），基施硫酸铵（c）追肥，在开花期前70天型（100 kg N/ha）追施包膜尿素，基施硫酸铵（16 kg N/ha）。我们采用了以下方法和材料：“15 N标记肥料”，以估计来自肥料的氮量;“N平衡法”使用的是突变和非突变等基因系cv。T202和T201，估算根瘤固定氮量;“相对酰脲法”测定根瘤的相对固氮量。
Abstract The objective of these studies is to increase the productivity of soybean [Glycine max (L.) Merr. cv. Enrei] with good quality by the application of controlled release nitrogen fertilizers. Soybean was grown in an upland field converted from a drained paddy field in Niigata. The fertilizer treatments were as follows: (a) control, conventional basal dressing of ammonium sulfate (16 kg N/ha); (b) deep placement, deep placement of coated urea, 100 day type (100 kg N/ha) with basal dressing of ammonium sulfate (16 kg N/ha); (c) top dressing, top dressing of coated urea, 70 day type (100 kg N/ha) just before the flowering stage with basal dressing of ammonium sulfate (16 kg N/ha). We employed the following methods and materials: “15N-labeled fertilizers,” to estimate the amount of N derived from fertilizers; “N-balance method” using the nodulating and non-nodulating isogenic line cv. T202 and T201, to estimate the amount of fixed N2 by root nodules; “relative ureide method” to determine the relative c...