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温室花生试验的二个处理,1.测定施用氮肥对缺氮土壤中接种根瘤菌对花生生长的效果。2.是应用同位素N~(15)方法,研究花生根部区域存有不同的氮素水平,通过花生子房柄对氮素的吸收。在播种时施用氮肥对花生幼苗的根瘤数目大量减少，但其含氮量增加。由于施用氮肥的结果，花生蔓和荚果的综合产量增加，但在播种后5周施用少量氮肥的除外。6和12P.P.M氮素的任何一种，在播种或播后5周施用的结果，收获时其成熟荚果百分率较高，但是施用过多的氮素化肥，则延迟其成熟。应用同位素N~(25)确定了花生通过子房柄吸收氮素。明确通过子房柄吸收氮素的数量和根部区域内供给有效氮素之间的相互关系。当花生根部区域接种根瘤菌或施用化合氮肥为氮素来源，供给充足的氮素，则花生通过子房柄吸收氮素是不重要的。但是当根部存在的氮素接近贫乏状态，花生通过子房柄产生吸收氮素是相当重要的。
Greenhouse peanut test of the two treatments, 1. Determination of nitrogen application on nitrogen-deficient soil rhizobia inoculation of peanut growth. Is the application of isotope N ~ (15) method to study the peanut root area has different levels of nitrogen, through the arachis of peanut nitrogen absorption. N application at planting decreased the number of nodules in peanut seedlings significantly but increased the nitrogen content. The combined yields of peanut vine and pods increased as a result of application of nitrogen fertilizer, except for the application of small amounts of nitrogen fertilizer 5 weeks after sowing. 6 and 12P.P.M. Nitrogen, applied 5 weeks after sowing or sowing, had a higher percentage of mature pods at harvest but delayed application of excess nitrogen fertilizers. The application of isotope N ~ (25) determined that peanut absorbed nitrogen through the ovary. Identify the relationship between the amount of nitrogen absorbed through the ovary stem and the supply of available nitrogen in the root zone. When rhizobia is inoculated into the root zone of peanut or nitrogen sources are used as a source of nitrogen to supply sufficient nitrogen, it is unimportant for the peanut to absorb nitrogen through the ovary stem. However, it is important that the peanut produce nitrogen uptake through the stalk when the nitrogen present in the roots is nearing the lean state.