文章基本信息

标题：Potassium Releasing Capacity in Some Soils of Anantnag District of Kashmir
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作者：Subhash Chand ; Tahir Ali
期刊名称：Universal Journal of Environmental Research and Technology
电子版ISSN：2249-0256
出版年度：2011
卷号：1
期号：3
出版社：Euresian Publications
摘要：The potassium releasing capacity of fifteen soil samples of Anantnag district of Kashmir were assessed by using five chemical extractants. The decreasing order of potassium release by the different chemical extractants in the soils was 1M HNO3 > 0.01 N HCl--12 extractions>0.01 N HCl--9 extractions> 0.3 N NaTPB-16 hours > 0.01N HCl 3 extractions> 1.38N H2SO4=0.01N HCl-1 extractions> % K saturation. The K released by 1M HNO3 was significantly correlated with 1.38N H2SO4 (0.995**) and 10.28 N H2SO4 (0.996**) .The significant correlations among different form of K in Anantnag soils indicate the various K pools (exchangeable=Non-exchangeable) for proper K fertilizer management. The potassium status in Anantnag soils was variable.
关键词：Extractants; Fertilizer; Potassium; Soil quality