干旱区生态环境知识资源中心(Arid): 不同轮作模式对砂田土壤微生物区系及理化性状的影响

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	不同轮作模式对砂田土壤微生物区系及理化性状的影响
其他题名	Effect of different rotation patterns on soil microbial population and physiochemical properties under gravel-sand mulched field conditions
	吴宏亮; 康建宏; 陈阜; 许强; 张海林; 赵亚慧
来源期刊	中国生态农业学报
ISSN	1671-3990
出版年	2013
卷号	21 期号:6 页码:674-680
中文摘要	砂田是干旱半干旱地区具有综合效能的旱作覆盖技术,有明显改良和调节农田小环境的功效,近年来随着砂田产业化的快速发展,西瓜连作现象非常普遍,连作障碍明显。针对砂田西瓜连作障碍明显的现状,基于定位试验,研究了西瓜连作(对照,CK)和西瓜花豆、西瓜辣椒、西瓜南瓜3种轮作方式对砂田土壤微生物群落和理化性状的影响,结果表明:与连作相比,3种轮作模式均可改善土壤微生物区系结构,增加土壤微生物多样性指数,增加细菌、放线菌数量及细菌数量与真菌数量比值(B/F),减少真菌数量;其中以与辣椒轮作效果最为明显,多样性指数(McIntosh指数,0.247)较CK(0.146)显著增加,放线菌数量比例(31.98%)较CK(14.22%)显著增加,但真菌数量及占总菌数的比例(0.06%)相对CK(0.43%)明显降低。轮作能改变土壤微生态环境,提高砂田土壤微生物多样性,缓解西瓜的连作障碍,西瓜与辣椒轮作是有效预防和克服连作障碍的较佳种植制度。
英文摘要	Gravel-sand mulching is a compreshensive technology in dry land farming that significantly improves microclimatic conditions in arid and semi-arid regions of Northwest China. With the development of watermelon industry and regularization of produce in recent years, continuous watermelon cropping has become a common farming system. The obstacles of continuous cropping of watermelon have been more severe in gravel-sand mulched fields. This study investigated and resolved the obstacles of continuous cropping of watermelon under gravel-sand mulched field conditions. The effects of crop rotation on soil microbial population and physiochemical properties were evaluated based on long-term experiment of continuous cropping under gravel-sand mulched field conditions. The four treatments arrayed in the experiment included watermelon watermelon (CK), watermelon kidney bean, watermelon pepper and watermelon pumpkin. Results suggested that compared with the control, the three rotation treatments significantly decreased the number and proportion of fungi, while significantly increased the number of bacteria and actinomyce, number ratio of bacteria to fungi (B/F). Soil microbe diversity index also significantly increased under the three rotation systems. The effect of the watermelon pepper treatment was good, under which the diversity index (McIntosh index) was 0.247, (vs CK of 0.146), proportion of actinomyce was 31.98% (vs CK of 14.22%), proportion of fungi was 0.06% (vs CK of 0.43%). Different crops had different water and nutrient requirements which resulted in different soil microbial populations. It was concluded that crop rotation changed soil microenvironment in gravel-sand mulched fields, increased diversity index and limited adverse effects of continuous cropping on watermelon. An efficient rotation system for resolving the obstacles in continuous cropping of watermelon was watermelon and pepper rotation system.
中文关键词	砂田 ; 轮作模式 ; 微生物区系 ; 理化性状 ; 连作障碍
英文关键词	Gravel-sand mulched field Rotation system Microbial population Physiochemical property Continuous cropping obstacles
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:4845192
来源机构	宁夏大学 ; 中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230690
作者单位	吴宏亮, 中国农业大学农学与生物技术学院, 农业部农作制度重点实验室, 北京 100193, 中国.; 陈阜, 中国农业大学农学与生物技术学院, 农业部农作制度重点实验室, 北京 100193, 中国.; 张海林, 中国农业大学农学与生物技术学院, 农业部农作制度重点实验室, 北京 100193, 中国.; 康建宏, 宁夏大学农学院, 银川, 宁夏 750021, 中国.; 许强, 宁夏大学农学院, 银川, 宁夏 750021, 中国.; 赵亚慧, 宁夏大学农学院, 银川, 宁夏 750021, 中国.
推荐引用方式 GB/T 7714	吴宏亮,康建宏,陈阜,等. 不同轮作模式对砂田土壤微生物区系及理化性状的影响[J]. 宁夏大学, 中国农业大学,2013,21(6):674-680.
APA	吴宏亮,康建宏,陈阜,许强,张海林,&赵亚慧.(2013).不同轮作模式对砂田土壤微生物区系及理化性状的影响.中国生态农业学报,21(6),674-680.
MLA	吴宏亮,et al."不同轮作模式对砂田土壤微生物区系及理化性状的影响".中国生态农业学报 21.6(2013):674-680.