Compared with the WT, the oilseed rape green manure returning treatments showed a trend of increased contents of soil organic matter and available potassium, and the soil organic matter in BN was significantly increased by 17.16%.
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Effects of oilseed rape green manure on phosphorus availability of red soil and rice yield in rice-green manure rotation system.
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The sentences
Compared with WT and NT, the soil available phosphorus content of BJ and BN showed an increasing trend.