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CN 11-3996/S
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HUANG Shao-min, BAO De-jun, HUANGFU Xiang-rong, ZHANG Hong-cheng, ZHAO Bing-qiang, ZHANG Fu-da0, LIU Xin-she. 长期施肥对潮土耕层土壤养分状况的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 135-140.
Citation:
HUANG Shao-min, BAO De-jun, HUANGFU Xiang-rong, ZHANG Hong-cheng, ZHAO Bing-qiang, ZHANG Fu-da0, LIU Xin-she. 长期施肥对潮土耕层土壤养分状况的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 135-140.
HUANG Shao-min, BAO De-jun, HUANGFU Xiang-rong, ZHANG Hong-cheng, ZHAO Bing-qiang, ZHANG Fu-da0, LIU Xin-she. 长期施肥对潮土耕层土壤养分状况的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 135-140.
Citation:
HUANG Shao-min, BAO De-jun, HUANGFU Xiang-rong, ZHANG Hong-cheng, ZHAO Bing-qiang, ZHANG Fu-da0, LIU Xin-she. 长期施肥对潮土耕层土壤养分状况的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 135-140.
长期施肥对潮土耕层土壤养分状况的影响
HUANG Shao-min
,
BAO De-jun
,
HUANGFU Xiang-rong
,
ZHANG Hong-cheng
,
ZHAO Bing-qiang
,
ZHANG Fu-da0
,
LIU Xin-she
Abstract
Abstract
利用大田长期定位监测施肥对潮土耕层土壤养分状况变化的影响。结果表明,施肥极显著影响土壤中速效P、K变化,11个施肥处理中1.5MNPK、MNPK、NPK能以平均每年3.7~4.2mg/kg的速度增加土壤速效P的含量、以2.1-6.8mg/kg的速度增加速效K含量,其他施氮肥处理都不同程度增加速效P、K的含量;而不施磷钾肥土壤P、K耗竭同样非常显著,NK、N、CK不施磷肥处理土壤有效P降低很严重,平均年降低0.55、0.8、0.42 mg/kg,CK、N、NP不施钾肥处理土壤中速效K平均年降低3.6、2.3、2.3mg/kg。全N及有机质变化规律一致,种植大豆施有机肥及秸秆还田能极显著增加土壤全N、有机质和全P含量,而各处理土壤全K却降低。
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