Zheng Jianying,Zhao Gengsheng,Wu Ruijun.Fertilization Effect and Nutrient Cycle Balance Feature of Dryland in Loess Hilly Gully Region[J].Research of Soil and Water Conservation,1996,3(02):7-12.
黄土丘陵沟壑区旱地肥料效应与养分循环平衡特征
- Title:
- Fertilization Effect and Nutrient Cycle Balance Feature of Dryland in Loess Hilly Gully Region
- 摘要:
- 根据多年的研究结果，黄土丘陵沟壑区是N、P化肥的高效区，在各种土地类型上，均以配合施用效果高而稳定，养分平衡结果表明，NP配合施用N素亏损，川地磷素营养得到改善，有机无机配合施用，土壤肥力全面提高。坡耕地由于水土流失的影响，土壤磷库除有机肥与NP配施外，均处亏损状态。由此得出，本区必须合理利用土地，建设基本农田，实施有机无机配合施用，达到高产，优质高效及培肥土壤。
- Abstract:
- Accordiny to mang years experiment,this region has a high use effect of N and P which mixed each other to gain a high and stable pruduction.Nutrient cycle shows N is short as N mixed with P and soil P in the plain is improved.Soil fertilitv is improved completely as organic matter mixed with chemical fertilizer, except organic matter mixed with N and P, is short for soil and water loess in slopeland.So we should use soil land rationaly, construct basic farmland, carry out the apply organic matter mixed with chemical fertilizer in order to reach high yield,high quality,high effects and improving soil.
参考文献/References:
[1] 余存祖等.土地资源与生产力研究.西北水保所主编, 科技出版社出版, 1991
[2] 杨文治等.黄土高原区域治理与评价.科学出版社, 125-182
[3] 卢宗凡等.水土保持农业增产体系的研究, 水土保持学报, 1990(2)
[4] 郑剑英等.黄绵土在连续施肥下的肥料效益.水土保持通报, 1990(2)
[5] 彭琳等.黄土区有机肥与化肥配施效应.土壤肥料, 1983(5)
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备注/Memo
收稿日期:1995-11-10;改回日期:。