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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
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| | Based on the fixed-site experiments of 5 paddy soils of Jiangxi province, four important points were summarized as follows: | | 本文论述1984-1987年在江西五种土壤进行五个定位试验结果:(1)稻田氮、磷、钾、有机肥、化肥与有机肥配施增产效应.(2)化肥与有机肥配施具有培肥改土稳产高产效果.(3)要求年亩产800公斤所需养分状况.(4)施肥对养分平衡以及水稻营养和土壤肥力消长关系.为全省稻田合理分配施用化肥,预测土壤肥力变化提供科学依据. | | 文摘来源 | | The experiment was conducted in sandy soil of Eastern Henan Province to investigate the effects of the allotment of P on different crops in the system of winter wheat intercropping with peanut.The results showed that soil available P represented the characteristics of "high in winter and low in summer" in the rotation.The minimum occurred in the period of winter wheat sprout to the start to grow while the maxmum occured in that of peanut seedling to harvest,and this trend did not change when P fertilizer wa... | | 在豫东沙区进行冬小麦套作花生轮作制度中磷肥分配施用效果试验。结果表明:冬小麦套作花生生长周期中土壤速效磷的变化规律为“冬低夏高”,最低值出现在冬小麦出苗至起身期,最高值出现在花生苗期至结荚期,施用磷肥不改变这一规律;施用磷肥具有明显的以磷增氮效应,冬小麦和花生的氮素吸收利用率分别增加7%~20%和12%~24%;在冬小麦套作花生轮作周期中磷肥分配应掌握“重冬轻夏”的原则,但在土壤速效磷含量较低、磷肥相对不足情况下,一次大量集中施用应慎重。 | | 文摘来源 | |   |
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