Integrated nutrient management in wheat grown in a northeast India soil: Impacts on soil organic carbon fractions in relation to grain yield

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• 作者：Ashmita Bharali^a ; Kushal Kumar Baruah^a ; ^{kkbaruah14@gmail.com} ; ^{kkbaruah@tezu.ernet.in} ; Pradip Bhattacharyya^b ; Dipti Gorh^a
• 关键词：Integrated nutrient management ; Photosynthesis ; Soil carbon dynamics ; Wheat ; Yield
• 刊名：Soil and Tillage Research
• 出版年：2017
• 出版时间：May 2017
• 年：2017
• 卷：168
• 期：Complete
• 页码：81-91
• 全文大小：1602 K
• 卷排序：168

文摘

Effects of integrated nutrient management on photosynthesis, wheat grain yield and soil carbon fractions were investigated. The amendments had significant impact on photosynthesis of wheat plants at the reproductive stage. An increase of 27% grain yield due to Azolla compost application is considered as significant finding of the present study. Azolla compost application in soil had noticeable influence on non-labile and recalcitrant carbon fractions. Recalcitrant, humic and fulvic carbon fractions can persist in soil for longer duration and are associated with long term carbon sequestration.