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- W2355853886 abstract "The 3414 fertilizer experiments carried out in Huining County between 2007 and 2010were conducted to study the relationship between soil nutrient availability and the relative yield of all-film doable-furrow sowed maize.The research preliminarily established the nutrient plentiful-lack index for the aforementioned semi-arid land.The results showed that the available hydrolyzed nitrogen content of the soil in Huining County was divided into three levels:low( 43mg·kg~(-1)),medium-low(43~73mg·kg~(-1)) and medium(73~125mg·kg~(-1));the phosphorus content was divided into five levels:low(7mg·kg~(-1)),medium-low(7~15mg·kg~(-1)),medium(15~28mg·kg~(-1)),medium-high(28~35mg·kg~(-1)) and high(35mg·kg~(-1));the potassium content was divided into four levels:medium-low(119~172mg·kg~(-1)),medium(172~250mg·kg~(-1)),medium-high(250~283mg·kg~(-1)) and high( 283mg·kg~(-1)).We calculated the average amount of recommended fertilization using the fertilizer effect function and the different soil fertility levels.The results indicated that the recommended NPK fertilizer rates were N 266.1~185.1kg·hm~(-2),P_2O_5132.2~95.1kg·hm~(-2) and K_2O 70~47.7kg·hm~(-2),respectively,and the appropriate N:P_2O_5:K_2O ratio was 1:0.62~0.43:0.38~0.25." @default.
- W2355853886 created "2016-06-24" @default.
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- W2355853886 date "2014-01-01" @default.
- W2355853886 modified "2023-09-25" @default.
- W2355853886 title "Research on soil nutrient abundance-deficiency index of maize in the semi-arid region of Northwest China" @default.
- W2355853886 hasPublicationYear "2014" @default.
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