2012•T'u Jang T'ung PaoRequires access
Study of Soil organic Matter and Available Nutrients'Variation after Reclamation in "Farm 853"
Lingli Wang
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Abstract
Based on the tests for soil nutrients in Farm 853,Heilongjiang Province,the soil organic matter and available nutrients were measured to assess the changes of soil nutrients from 1973 to 2007.Results indicated that the soil organic matter and available nutrients of Farm 853 were relatively high.But the contents of soil organic matter decreased with the increase of reclamation year(s),and the decreasing rate was faster in the early 20 years and slowed down thereafter.Soil available N,P and K contents were relatively high,which mainly ranged in the grades of 1 to 3.