Effects of Planting Different Forage Species on Raising Soil Fertilities in Loess Hilly Regions

Liu Hongling; Liang Yimin; Li Xianglan

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Effects of Planting Different Forage Species on Raising Soil Fertilities in Loess Hilly Regions

- Effects of Planting Different Forage Species on Raising Soil Fertilities in Loess Hilly Regions
- Bulletin of Soiland Water Conservation Vol. 16, Issue 4, Pages: 12-15(1997)
- 作者机构：
  
  中国科学院水利部水土保持研究所, 陕西杨陵,712100
- 作者简介：
- 基金信息：
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- Published：1997
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Liu Hongling, Liang Yimin, Li Xianglan. Effects of Planting Different Forage Species on Raising Soil Fertilities in Loess Hilly Regions[J]. Bulletin of Soiland Water Conservation, 1997, 16(4): 12-15.
DOI：

Liu Hongling, Liang Yimin, Li Xianglan. Effects of Planting Different Forage Species on Raising Soil Fertilities in Loess Hilly Regions[J]. Bulletin of Soiland Water Conservation, 1997, 16(4): 12-15. DOI：

摘要

以黄土丘陵区具有代表性的禾本科牧草无芒雀麦及豆科牧草沙打旺、草木樨为材料，研究其对川台地土壤腐殖质含量和组成，有关营养元素及后茬作物产量的不同影响，结果表明：种植禾本科及豆科牧草均能提高土壤中腐殖质及氮素营养的水平，其中禾本科牧草效果较豆科牧草更为明显。它们对土壤中微量元素的影响因各自对营养元素的利用程度而异。三种牧草样地后茬作物的产量以草木樨为高，无芒雀麦不宜与禾本科作物轮作。

Abstract

The experiment is conducted with three different forage species which have grown for 4 years on newly-built terrace land in loess hilly region to study the effects on raising the content of soil humus and nutrient by cultivations of Bramus inermis

Astragalus adsurgens and Meliotus albus respectly. The resoults show that the soil humus

nitrogen and phosphorus content can be significantly raised by planting the forage species

the best effect on improving soil fertilities can be obtained by planting Bromus inermis. On the other hand

the content of soil trace element changes with the different utilization of the three forage species. Although the treatment of planting Bromus inermis has the best effect

the yield of millet by planting Bromus inermis previously is relatively low. However

the millet by planting Meliotus albus previously has the highest yield among the three treatments.

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