| 木薯茎秆粉碎还田对土壤肥力的影响 |
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| 引用本文： | 李红雨,罗兴录,刘玉生,莫凡. 木薯茎秆粉碎还田对土壤肥力的影响[J]. 广西农业科学, 2009, 40(6): 705-709 |
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| 作者姓名： | 李红雨 罗兴录 刘玉生 莫凡 |
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| 作者单位： | 广西大学农学院,南宁,530005 |
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| 基金项目： | 国家科技支撑计划项目 |
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| 摘 要： | 将上季木薯茎秆粉碎堆沤腐熟，通过设计不同的还田量于木薯下种前还田，研究木薯茎秆粉碎还田对土壤肥力的影响。结果表明，木薯茎秆粉碎还田可以有效降低土壤容重，增加土壤孔隙度，显著改善土壤的物理性状；还可以提高土壤脲酶和过氧化氢酶活性，增加土壤碱解氮、速效钾等速效养分含量，但对土壤速效磷含量的增效不明显。在木薯茎秆粉碎还田各处理中，以18000kg／ha处理对土壤的培肥效果最佳。
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| 关 键 词： | 木薯 茎秆 还田 土壤肥力 |
Effects of returning smashed cassava straw into field on soil fertility |
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| LI Hong-yu,LUO Xing-lu,LIU Yu-sheng,MO Fan. Effects of returning smashed cassava straw into field on soil fertility[J]. Guangxi Agricultural Sciences, 2009, 40(6): 705-709 |
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| Authors: | LI Hong-yu LUO Xing-lu LIU Yu-sheng MO Fan |
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| Affiliation: | Agricultural College;Guangxi University;Nanning 530005;China |
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| Abstract: | After cassava straw of last cropping was smashed and fermented with organic matter,it was put into field for five different applications before planting cassava,and the effects of smashed cassava straw on soil fertility was studied. The results showed that this organic fertilizer of smashed cassava straw could decrease the soil bulk density effectively,increase soil porosity,improve the physical properties of soil markedly. Moreover,it also could increase the activities of urease and catalase in soil,and di... |
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| Keywords: | cassava straw returning into field soil fertility |
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