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CN 11-3996/S
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WANG Bai-ren, XU Ming-gan, WEN Shi-lin, Xiong ji-dong, ZHAO Bing-qiang, ZHANG Fu-dao. 长期施肥对红壤旱地磷组分及磷有效性的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 47-52.
Citation:
WANG Bai-ren, XU Ming-gan, WEN Shi-lin, Xiong ji-dong, ZHAO Bing-qiang, ZHANG Fu-dao. 长期施肥对红壤旱地磷组分及磷有效性的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 47-52.
WANG Bai-ren, XU Ming-gan, WEN Shi-lin, Xiong ji-dong, ZHAO Bing-qiang, ZHANG Fu-dao. 长期施肥对红壤旱地磷组分及磷有效性的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 47-52.
Citation:
WANG Bai-ren, XU Ming-gan, WEN Shi-lin, Xiong ji-dong, ZHAO Bing-qiang, ZHANG Fu-dao. 长期施肥对红壤旱地磷组分及磷有效性的影响[J]. Journal of Plant Nutrition and Fertilizers, 2002, 8(S1): 47-52.
长期施肥对红壤旱地磷组分及磷有效性的影响
WANG Bai-ren
,
XU Ming-gan
,
WEN Shi-lin
,
Xiong ji-dong
,
ZHAO Bing-qiang
,
ZHANG Fu-dao
Abstract
Abstract
研究了旱地红壤长期不同施肥条件下不同年份土壤磷素状况。结果表明,土壤全磷(PT)、无机磷、有机磷、Olsen-P、Bray-P的平均含量以MNPK、1.5(MNPK)、MNPK(豆)和M处理为最高,其次为NP、PK、NPK、SNPK处理。不施磷的N、NK和CK2处理最低。在施磷的条件下,土壤磷的积累主要以Ca2-P、Ca8-P、Al-P含量增加为主要特征。土壤中的Olsen-P、Bray-P与土壤中各磷组分的相关性以Ca2-P最好,其次PT、Al-P、Ca8-P,而以O-P为最差。在南方红壤地区Olsen-P、Bray-P是土壤有效磷较好的两个度量指标,并与作物产量具有显著的相关性。
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