北方旱寒区冬油菜不同后茬作物根际与非根际土壤肥力研究

杨刚; 孙万仓; 王丽萍; 慕平; 刘自刚; 李学才; 杨宁宁; 孔德晶; 鲁美宏

Study on rhizosphere and non-rhizosphere soil fertilities of different crops after harvest of winter rape in the north dry-cold area

View Fulltext View/Add Comment Download reader

DOI：10.7606/j.issn.1000-7601.2015.03.09

Key Words: winter rape after crop soil of rhizosphere and non-rhizosphere soil fertility

Author Name	Affiliation
YANG Gang	甘肃省油菜工程技术研究中心,甘肃兰州 730070 甘肃省干旱生境作物重点实验室/甘肃省作物遗传改良与种质创新重点实验室, 甘肃兰州 730070 甘肃农业大学农学院, 甘肃兰州 730070
SUN Wan-cang	甘肃省油菜工程技术研究中心,甘肃兰州 730070 甘肃省干旱生境作物重点实验室/甘肃省作物遗传改良与种质创新重点实验室, 甘肃兰州 730070 甘肃农业大学农学院, 甘肃兰州 730070
WANG Li-ping	甘肃省油菜工程技术研究中心,甘肃兰州 730070 甘肃省干旱生境作物重点实验室/甘肃省作物遗传改良与种质创新重点实验室, 甘肃兰州 730070 甘肃农业大学农学院, 甘肃兰州 730070
MU Ping	甘肃省干旱生境作物重点实验室/甘肃省作物遗传改良与种质创新重点实验室, 甘肃兰州 730070 甘肃农业大学农学院, 甘肃兰州 730070
LIU Zi-gang	甘肃省油菜工程技术研究中心,甘肃兰州 730070 甘肃省干旱生境作物重点实验室/甘肃省作物遗传改良与种质创新重点实验室, 甘肃兰州 730070 甘肃农业大学农学院, 甘肃兰州 730070
LI Xue-cai	甘肃省油菜工程技术研究中心,甘肃兰州 730070 甘肃省干旱生境作物重点实验室/甘肃省作物遗传改良与种质创新重点实验室, 甘肃兰州 730070 甘肃农业大学农学院, 甘肃兰州 730070
YANG Ning-ning	甘肃省油菜工程技术研究中心,甘肃兰州 730070 甘肃省干旱生境作物重点实验室/甘肃省作物遗传改良与种质创新重点实验室, 甘肃兰州 730070 甘肃农业大学农学院, 甘肃兰州 730070
KONG De-jing	甘肃省油菜工程技术研究中心,甘肃兰州 730070 甘肃省干旱生境作物重点实验室/甘肃省作物遗传改良与种质创新重点实验室, 甘肃兰州 730070 甘肃农业大学农学院, 甘肃兰州 730070
LU Mei-hong	甘肃省油菜工程技术研究中心,甘肃兰州 730070 甘肃省干旱生境作物重点实验室/甘肃省作物遗传改良与种质创新重点实验室, 甘肃兰州 730070 甘肃农业大学农学院, 甘肃兰州 730070

Hits: 2406

Download times: 1176

Abstract:

To investigate rhizosphere and non-rhizosphere soil fertilities of different crops after harvest of winter rape, including rape, flax, corn and wheat, activities of four soil enzymes (urease, catalase, invertase and phosphatase) and physicochemical indexes were examined. The results showed that there were considerable differences in rhizosphere and non-rhizosphere soil fertilies among the four crops. Rhizosphere soil enzyme activities and the physicochemical indexes were significantly higher than fallow control. Nevertheless, non-rhizosphere were only superor in urease, available N and organic matter contents. Correlation analysis showed that acitivities of soil enzymes had certain corelationships with physicochemical indexes, both of which were important for evaluations of soil fertilities. In addition, rhizosphere and non-rhizosphere soil fertilities of different corps could be divided into three levels by a subjection function method. The fertility levels of different crops were as the follows: wheat rhizosphere soil(F=0.72)＞flax rhizosphere soil (F=0.61)＞rapeseed rhizosphere soil(F=0.56)＞maize non-rhizosphere soil (F=0.44)＞flax non-rhizosphere soil (F=0.39)＞wheat non-rhizosphere soil (F=0.38)＞maize rhizosphere soil (F=0.37)＞rapeseed non-rhizosphere soil (F=0.29)＞fallow CK(F=0.15). It was concluded that it was feasible to evaluate the soil fertility by using subordinate function method with multiple indexes.