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- W2360642011 abstract "A field experiment from 1995 to 1999 showed that there were obvious seasonal changes of different forms of inorganic P when P was applied to soil in wheat season and rice season. Ca 2 P,Ca 8 P,Al P and Fe P decreased obviously with the treatment of 0 kg/hm 2 P 2O 5;decreased slightly with 45 kg/hm 2 P 2O 5;increased slightly with 90 kg/hm 2 P 2O 5;increased obviously with 135 kg/hm 2 P 2O 5.There was no obvious difference in the change of applied P between wheat seasons and rice seasons. When fertilizer reached 45～90 kg/hm 2 P 2O 5, the balance of different forms of inorganic P was maintained. In rice season Ca 2 P was higher than that in wheat season. When fertilizing amount increased Ca 2 P,Ca 8 P,Al P and Fe P increased positively. The applied P was hardly transformed into O P and Ca 10 P. During wheat rice rotation,Ca 8 P, Al P in wheat season was lower than those in rice season, and Fe P in wheat season was higher than that in rice season, but O P increased slightly with the increase of fertilizing amount, and O P in rice season was lower than that in wheat season." @default.
- W2360642011 created "2016-06-24" @default.
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- W2360642011 date "2002-01-01" @default.
- W2360642011 modified "2023-09-23" @default.
- W2360642011 title "Seasonal Changes of Inorganic Phosphate in Calcareous Soils under Wheat-Rice Rotation" @default.
- W2360642011 hasPublicationYear "2002" @default.
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