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The impact of age (5, 10, 15, 20, 30, 40 years) on chemical characteristics of mineral soil under an age sequence of alder-cardamom agroforestry stands was studied in the Eastern Himalayas. The seasonal variation in soil organic carbon (OC), soil organic matter (SOM), total nitrogen (TN), forms of phosphorus (total P, organic P, inorganic P, available P, fractionated forms of P), mineral nitrogen,...
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