| 稻草覆盖对坡地红壤培肥及作物增产的效果 |
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| 引用本文： | 黄伟生,黄道友,汪立刚,肖和艾,苏以荣,吴金水.稻草覆盖对坡地红壤培肥及作物增产的效果[J].农业工程学报,2006,22(10):102-104. |
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| 作者姓名： | 黄伟生 黄道友 汪立刚 肖和艾 苏以荣 吴金水 |
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| 作者单位： | 1. 中国科学院亚热带农业生态研究所亚热带农业生态重点实验室,长沙,410125;中国科学院研究生院,北京,100039;惠州大亚湾经济技术开发区环境监测站,惠州,516081
2. 中国科学院亚热带农业生态研究所亚热带农业生态重点实验室,长沙,410125 |
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| 基金项目： | 中国科学院知识创新工程项目;国家重点基础研究发展计划(973计划);国家自然科学基金;中国科学知识创新工程领域前沿项目 |
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| 摘 要： | 研究了坡地红壤连续5年采用稻草覆盖措施对土壤肥力和作物产量的影响。结果表明,“稻草+化肥氮磷”(“Straw+NP”)处理的土壤有机碳和全氮、磷分别比不施肥(CK)的提高42.9%和17.4%、44.2%,有机碳和全氮的增幅约是纯化肥(NPK)处理的2倍。与CK和NPK处理的相比,“Straw+NP”处理能明显提高微生物生物量碳、氮、磷和溶解性有机碳、氮以及Olsen-P含量,差异达到显著(P<0.05)或极显著(P<0.01)水平。在等养分施用量的条件下,“Straw+NP”处理能显著提高油菜和甘薯的产量。因此,稻草易地覆盖是一种有效培肥坡地红壤和增加作物产量的途径。
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| 关 键 词： | 稻草覆盖 坡地红壤 碳 氮 磷 产量 |
| 文章编号： | 1002-6819(2006)10-0102-03 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2006-04-28 |
Effects of straw mulching to slope red soil on fertility maintaining and crop yield |
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| Huang Weisheng,Huang Daoyou,Wang Ligang,Xiao He''ai,Su Yirong and Wu Jinshui.Effects of straw mulching to slope red soil on fertility maintaining and crop yield[J].Transactions of the Chinese Society of Agricultural Engineering,2006,22(10):102-104. |
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| Authors: | Huang Weisheng Huang Daoyou Wang Ligang Xiao He'ai Su Yirong and Wu Jinshui |
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| Institution: | The Key Laboratory of Subtropical Agro-ecology, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; Graduate School of Chinese Academy of Sciences, Beijing 100039, China; Huizhou Dayawan Economic and Technological De;The Key Laboratory of Subtropical Agro-ecology, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;The Key Laboratory of Subtropical Agro-ecology, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;The Key Laboratory of Subtropical Agro-ecology, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;The Key Laboratory of Subtropical Agro-ecology, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;The Key Laboratory of Subtropical Agro-ecology, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China |
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| Abstract: | The authors studied the effects of soil fertility maintainingand crop yield increase under straw mulch for five years in slope red earth insuccession. The results show as follows: the soil organic carbon and total N, Pcontent of "Straw +NP chemical fertilizer"("Straw+NP") treatment increased by 42.9%, 17.4% and 44.2% respectively than those of no chemical fertilizer(CK) treatment. It was approximately twice in the range of soil organic carbon and total N beingraised by "Straw+NP" treatment than by NPK chemical fertilizer(NPK) treatment.Compared with CK and NPK treatment, "Straw+NP" treatment can obviously improve the contents of red soil microbial biomass C, N, P, and dissolved organic C, N,Olsen-P, there are differences between fertilization treatment notability(P<0.05) or bally prominence(P<0.01). On the condition of nutrient dosage, "Straw+NP chemical fertilizer" treatment might obviously improve rape and sweet potatoyield. So, straw mulching is the most availability technique of soil fertilitymaintaining and crop yield increase in slope red soil. |
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| Keywords: | straw mulching slope red soil carbon nitrogen phosphorus yield |
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