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纸质出版:2005
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张磊 欧阳竹 董玉红 张志诚 潘国艳. 农田生态系统杂草的养分和水分效应研究[J]. 水土保持学报, 2005,19(2):69-72.
ZHANG Lei~. Ecological Effects of Weeds on Soil Water and Soil Nutrient in Farmland Ecosystem[J]. 2005, 19(2): 69-72.
张磊 欧阳竹 董玉红 张志诚 潘国艳. 农田生态系统杂草的养分和水分效应研究[J]. 水土保持学报, 2005,19(2):69-72. DOI:
ZHANG Lei~. Ecological Effects of Weeds on Soil Water and Soil Nutrient in Farmland Ecosystem[J]. 2005, 19(2): 69-72. DOI:
通过田间试验研究了冬小麦田杂草的土壤养分和水分效应.发现田间保留一定量的杂草能够提高表层土壤水分含量,尤以0~20cm层次表现明显,显示出很好的土壤水分保持效应。同时在保留杂草的处理中,0~60cm土壤碱解氮储量消耗最少.速效P储量在增加.而速效K储量增加得最多。并且在冬小麦返青期不论土壤养分情况怎么样.在收获后都以保留杂草的处理土壤速效养分(碱解氮、速效磷和速效钾)储量最高.表现出较高的土壤养分供给能力。
Ecological effects of weeds on soil water and soil nutrient were studied in winter wheat. The results showed that weeds
in winter wheat farmland
raised soil water content
especially in 0~20 cm profile. Moreover
in 0~60 cm profile
the loss of available-N was the least and the total amount of available-P was increased (comparatively
other treatment's were decreased) and available-K increment was the maximum in WK(weeds keep) treatment. Furthermore
the total amount of nutrient(available-N
P and K) of WK treatment was the most in harvest period.
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