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首页> 外文会议>The Meeting of the International Humic Substances Society >Effect of humified organo-mineral fertilisers on nitrogen in a soil-plant agroecosystem-A 15N study
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Effect of humified organo-mineral fertilisers on nitrogen in a soil-plant agroecosystem-A 15N study

机译：湿气有机矿物肥对土壤 - 植物农业科学系统氮的影响 - A 15N研究

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摘要

The ability to inhibit the rate of release of nitrogen(N)from urea fertiliser will reduce N losses to the environment and enhance N use efficiency.A ~(15)N microcosm experiment was conducted to study the efficacy of brown coal-urea(BCU)granules on the N losses and crop yield of sweet corn.Application of N fertiliser as BCU considerably influenced the gaseous losses,microbial immobilisation and plant recovery of ~(15)N in a corn-soil system.Granulation of BC with urea significantly reduced the fertiliser derived gaseous losses of ~(15)N as N2O and NH3 compared to the sole application of urea.The decreased gaseous ~(15)N losses and increased fertiliser-~(15)N retention by BC and soil microbial biomass were mainly responsible for increased yield and N use efficiency of the sweet corn.
机译：抑制尿素肥料释放速率的能力将降低对环境的损失，提高N使用效率。进行N〜（15）N微观实验，以研究棕色煤尿素的功效（BCU ）颗粒在甜玉米的N损失和作物产量。氮肥作为BCU的应用显着影响了玉米土体系中〜（15）n的气态损失，微生物固定和植物恢复。BC与尿素显着降低与尿素的唯一应用相比，肥料衍生〜（15）n和NH3的气态损失。（15）次损失和增加的肥料 - 〜（15）n抑制，BC和土壤微生物生物量的降低负责增加产量和甜玉米的效率。

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