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首页> 外文期刊>生态学研究(英文) >Nitrogen Release Characteristics of a Bag Controlled Release Fertilizer
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Nitrogen Release Characteristics of a Bag Controlled Release Fertilizer

机译：袋控制释放肥料的氮释放特性

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摘要

Slow release fertilizers are designed to enhance crop yield and minimizing the loss of nitrogen(N)to environment.However,N release in leaching and loss in ammonia emission from bag controlled release fertilizers have not been previously evaluated under the standardized conditions in soil.Accordingly,a laboratory study was conducted to evaluate the characteristics of N release from a bag controlled fertilizer with 1,3,5 and 7 rows of hole(B-1,B-3,B-5,B-7)and a kraft bag without hole(B-W).The results showed that the amount of N leaching of B-1,B-3,B-5,B-7 and B-W were significantly lower than urea fertilizer without bag(U).The maximum N release from the fertilizers followed the order:U(83.16%)>B-7(54.61%)>B-5(54.02%)>B-W(51.51%)>B-3(48.87%)>B-1(38.60%)during the experimentation.Compared with U treatment,ammonia volatilization losses were significantly decreased by B-1,B-3,B-5,B-7 and B-W treatments.Based on N release and loss,a suitable bag with holes should be considered in practice when using the bag controlled fertilizer to meet an environment good objective.The evaluation method merits further study combined with field experiment.
机译：慢释放肥料旨在增强作物产量，并最大限度地减少氮气损失为环境。然而，在土壤中的标准化条件下，禁止浸出和氨排放中浸出和氨排放中的释放。 ，进行实验室研究以评估从袋子控制肥料中的N释放的特性，其中1,3,5和7排孔（B-1，B-3，B-5，B-7）和牛皮纸袋没有孔（BW）。结果表明，B-1，B-3，B-5，B-7和BW的N次浸出量显着低于没有袋子（U）的尿素肥料。最大n释放肥料遵循顺序：U（83.16％）> B-7（54.61％）> B-5（54.02％）> BW（51.51％）> B-3（48.87％）> B-1（38.60％）通过治疗方法，B-1，B-3，B-5，B-7和BW治疗明显降低氨挥发损失。在N释放和损失上，应考虑具有孔的合适袋练习n利用袋子控制肥料满足环境良好目标。评价方法的优点进一步研究与现场实验相结合。

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