| 施用钾肥对小麦幼苗干物重及体内营养状况的影响 |
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| 引用本文： | 汪建飞.施用钾肥对小麦幼苗干物重及体内营养状况的影响[J].安徽科技学院学报,1991(2). |
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| 作者姓名： | 汪建飞 |
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| 作者单位： | 安徽农师院土化教研室 |
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| 摘 要： | 在黄红壤、黄褐土和砂姜黑土上,进行不同水平钾肥盆钵土培试验,结果表明,在正常的施肥水平,施用钾肥均能促进小麦幼苗干物重的增加,施钾过量则会造成干物重下降,施钾水平与小麦全株干物重呈二次曲线相关,在三种土壤上,相关系数分别为0.8335,0.8960,0.9913,当施钾水平为0.1gK_2O/kg土时,黄红壤和砂姜黑土上生长的小麦植株干物重达最大值,分别为0.267和0.240克/株,施钾为0.2gK_2O/kg土时,黄褐土上的小麦干物重达最大值,为0.264克/株,在正常的施肥水平,施用钾肥有利于植株中N、P、K、Mn的积累,对Ca、Mg、Fe、Cu、Mo的吸收则有抑制作用。
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| 关 键 词： | 钾肥 施钾水平 干物重 相关 |
Effects of the Application of Potassie Fertilizor on the Dry Matter Weight and Nut rit ion Status of Youngling Wheat |
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| Wang Jianfei.Effects of the Application of Potassie Fertilizor on the Dry Matter Weight and Nut rit ion Status of Youngling Wheat[J].Journal of Anhui Science and Technology University,1991(2). |
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| Authors: | Wang Jianfei |
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| Institution: | Agronomy Department |
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| Abstract: | The pot experiments have been done on the different lovels of the potassie fertilizer in the yellow red earth, the yellow drad soil and the Shajiang black soil.The results showed that the application of the potassic fertilizer on the normal level can help to increase the dry matter weight of the youngling wheat whereas the overuse will lead to a decrease of the weight. The application of the potass ic fertilizer has s qua re currilinear correlation with the dry matter weight of the whole wheat body.In the three kinds of soil, the coefficients oi correlation are ve spec tively 0.8335,0.8960 and 0,9913. At the level of 0.1gK20/kg the dry matter weight of the wheat body reaches the highest level, 0.267g and 0.2 0 each plant respectively on the yellow red earth and Shajiang black soil. At the level of 0.2gK20/kg, the dry matter weight of the wheat on the yellow drab soil reaches the highest level, which is 0.264g. On the normal level, the potassic fertilizer application can help the accu m ulation of N. P. K. Mn of the wheat body, but on the contrary may hold up the absorption of Ca . Mg. Fe. Cu. Mo. |
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| Keywords: | potassic fertilizer level of potassic fertilizer dry matter c o r r e 1 a t i o n |
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