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CN 11-3996/S
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xu Wan-li, WANG Jiang-li, LIU Hua, ZHAO Bing-qiang, ZHANG Fu-dao. 灰漠土长期定位施肥试验研究 Ⅲ.对灰漠土无机磷形态转化及其有效性的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 92-95.
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xu Wan-li, WANG Jiang-li, LIU Hua, ZHAO Bing-qiang, ZHANG Fu-dao. 灰漠土长期定位施肥试验研究 Ⅲ.对灰漠土无机磷形态转化及其有效性的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 92-95.
xu Wan-li, WANG Jiang-li, LIU Hua, ZHAO Bing-qiang, ZHANG Fu-dao. 灰漠土长期定位施肥试验研究 Ⅲ.对灰漠土无机磷形态转化及其有效性的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 92-95.
Citation:
xu Wan-li, WANG Jiang-li, LIU Hua, ZHAO Bing-qiang, ZHANG Fu-dao. 灰漠土长期定位施肥试验研究 Ⅲ.对灰漠土无机磷形态转化及其有效性的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 92-95.
灰漠土长期定位施肥试验研究 Ⅲ.对灰漠土无机磷形态转化及其有效性的影响
xu Wan-li
,
WANG Jiang-li
,
LIU Hua
,
ZHAO Bing-qiang
,
ZHANG Fu-dao
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Graphical Abstract
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Abstract
通过对不同施肥模式下灰漠土无机磷形态的研究,初步结果表明:(1)新疆灰漠土无机磷以钙磷为主,其中Ca10-P和Ca8-P占无机磷总量的81.5%,Ca2-P仅占2.3%,O-P、A1-P、Fe-P分别占6.1%、5.9%、4.2%。(2)Ca2-P是灰漠土中主要的速效磷来源,其次是Al-P和Fe-P;Ca10-P和Ca8-P是灰漠土的磷库,如何促进a10-P和Ca8-P向Ca2-P转化是提高灰漠土供磷能力的关键因素。(3)在不施磷或施磷但不均衡施肥的模式下,均会导致土壤供磷能力下降;在均衡施用化肥并增施有机肥的模式下,能提高灰漠土速效磷的供给,并能增加土壤速效磷积累。
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