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- W2382161999 abstract "A field experiment was performed to study the effects of controlled-release coated urea with duration of 30 d and 60 d topdressed at seedling stage or regreening stage on plant growth and soil NO-3-N content of winter wheat. The results showed that controlled-release coated urea(with duration of 60 d) could significantly promote plant growth, enhance N, P and K absorption, increase grain yield when it was topdressed at seedling stage and regreening stage. Compared with CK(only basal fertilizer was applied) treatment, the dry weight of shoot and root was increased by 33.21% and 67.84% respectively, the chlorophyl content in wheat leaves was increased by 12.77%~25.20%, the N, P and K content in shoot and grain were increased by 63.55%, 37.08%, 6.91% and 8.56%, 31.18%, 24.49% respectively. The spike length, grain weight, 1000-grain weight and grain yield were higher of 14.14%, 27.00%, 39.32% and 48.01% than the control treatment(CK). Controlled-release coated urea topdressed once at the regreening stage, N0N30 treatment was better than N0N60 treatment. The chlorophyl content was increased by 1.50%~3.04%, the N, P and K content in shoot and grain were increased by 12.37%, 12.25%, 1.26% and 0.50%, 5.69%, 9.74% respectively. The spike length, grain weight, 1000-grain weight and grain yield were increased by 2.84%, 11.81%, 11.65% and 6.61%. At the same time, controlled-release coated urea application could evidently decrease the quantity of soil NO-3-N leached to deep soil and lessen the risk to ground water pollution." @default.
- W2382161999 created "2016-06-24" @default.
- W2382161999 creator A5063329699 @default.
- W2382161999 date "2012-01-01" @default.
- W2382161999 modified "2023-09-24" @default.
- W2382161999 title "Influences of Topdressing Controlled-Release Coated Urea on Plant Growth and Soil NO-3-N Content of Winter Wheat" @default.
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