| 摘要: |
| 潮褐土是北京农业地区的重要土类之一,它不但分布面积广而且肥力差异大。本文是研究三种混合肥料(普通型、高磷型、缺钾型)在潮褐土的三种肥力水上,对大麦的反应,对大麦籽粒品质的影响,大麦对混合肥料中养分的利用率。同时还探讨了混合肥料中大量养分与微量养分的相互关系,利用硝基腐植酸铵作载体配制有机一无机混肥的可能性。 |
| 关键词: 配合比例 肥效 肥力水平 利用率 肥土 碳酸盐土壤 混肥 潮褐土 混合肥料 大麦产量 |
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| A STUDY OF COMPLEX FERTILIZER FOR BARLEY ON A MEADOW DRAB SOIL WITH DIFFERENT LEVEL OF FFRTILITY |
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| Abstract: |
| The effectof nutrient ratio of complex fertilizer on barley crop was studied in pot experiment.The soil used was meadow drab soil which is one of important soill of Beijing farm land.The fertiity level selected were of the high,low and medium.Three different nutrient ratios were used i.e.1;1:1,1:2:1 and 1:2:0 for N:P_2O:K_2O.The yield were measured.Both the grain and straw wre analyzed.The amenoacids of the grain were analyzed also.The rate of nutrient utilization was estimated.The relation between macr- on... |
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