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- W2356153764 abstract "Effects of different nitrogen application rate and ratio of base and topdressing on nitrogen utilization and soil NO_3-N content in winter wheat were studied by using ~(15)N isotope technique.The results indicated that: Under the same proportion of 5∶5,nitrogen accumulation amount derived from soil,and N use efficiency of treatment 2(168 kg N/hm~2) were higher than those of treatment 1(240 kg N/hm~2),but soil NO_3-N content of treatment 2 was lower than that of treatment 1.Grain yield,protein content,wet gluten content and dough stability time had no significant difference between the two treatments.Under the same nitrogen application rate of 168 kg/hm~2,nitrogen amount derived from soil was raised with the proportion increasing of topdressing of nitrogen,so did the protein content,dough stability time and soil NO_3-N content at the layers of 0~40 cm,but the N use efficiency and grain yield had no significant difference between the two treatments.At maturity stage,soil NO_3-N content at the layers of 0~60 cm were higher than that of before planting,there was a soil NO_3-N accumulation peak at the layer of 60~80 cm and the soil NO_3-N content was higher than that of before planting,but there was no significant difference under 80 cm." @default.
- W2356153764 created "2016-06-24" @default.
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- W2356153764 date "2006-01-01" @default.
- W2356153764 modified "2023-09-25" @default.
- W2356153764 title "Effects of Nitrogen Application Rate and Ratio of Base and Topdressing on Nitrogen Utilization and Soil NO_3-N Content in Winter Wheat" @default.
- W2356153764 hasPublicationYear "2006" @default.
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