| 不同灌溉方式下土壤中氨挥发损失及动态变化 |
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| 引用本文： | 马腾飞,危常州,王娟,侯振安,王肖娟,彭振宝,张波.不同灌溉方式下土壤中氨挥发损失及动态变化[J].石河子大学学报,2010,28(3):294-298. |
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| 作者姓名： | 马腾飞 危常州 王娟 侯振安 王肖娟 彭振宝 张波 |
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| 作者单位： | 石河子大学农学院/新疆兵团绿洲生态农业重点实验室,石河子,832003 |
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| 基金项目： | 国家科技支撑计划项目，农业部行业公益性专项 |
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| 摘 要： | 为合理施肥与提高氮肥利用率提供依据,研究了新疆北部灰漠土在不同灌溉方式下施肥后土壤氨气挥发损失,利用土柱在网室内进行滴灌和漫灌模拟实验,通过自行设计的连续抽气装置(即实现模拟风洞法效果)研究了滴灌和漫灌方式下施肥后土壤氨的挥发损失。结果表明:在不同施肥处理下(N240、N360和N480kg/hm2),漫灌氨气挥发量略高于滴灌。不同施肥量比较,N360和N480处理与N240和N0处理间差异显著;在相同灌溉处理下,全生育期收集的氨气损失总量为N360N480N240N0,其中FN360(漫灌N360)处理收集的氨气损失总量最高,为1.407kg/hm2,占肥料(N)比例0.39%(1%);氨挥发主要发生在作物生长的初期阶段,滴灌前3次收集的氨挥发量占总损失量的41%~56%。
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| 关 键 词： | 尿素 氨挥发 模拟风洞法 |
Nitrogen Loss and Dynamic Change of Soil Ammonia Volatilization in Different Irrigation Methods |
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| MA Tengfei,WEI Changzhou,WANG Juan,HOU Zhenan,WANG Xiaojuan,PENG Zhenbao,ZHANG Bo.Nitrogen Loss and Dynamic Change of Soil Ammonia Volatilization in Different Irrigation Methods[J].Journal of Shihezi University(Natural Science),2010,28(3):294-298. |
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| Authors: | MA Tengfei WEI Changzhou WANG Juan HOU Zhenan WANG Xiaojuan PENG Zhenbao ZHANG Bo |
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| Institution: | MA Tengfei,WEI Changzhou,WANG Juan,HOU Zhenan,WANG Xiaojuan,PENG Zhenbao,ZHANG Bo (Agricultural College of Shihezi University/Shehezi University/Key Laboratory of Oasis Ecological Agriculture,Xinjiang Production , Construction Group,Shihezi 832003,China) |
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| Abstract: | To provide theoretical basis for optimizing fertilizer in drip irrigation in arid areas,this paper studies ammonia volatilization after N fertilization in different system in Calcaric Fluvisals soil in North Xinjiang.Soil column method was used to simulate drip irrigation and flood irrigation,and a series of self-designed equipment was adopted to simulate wind tunnel for pumping ammonia from the column to a collector and then to determine the amount of ammonia volatilization in a mesh house.The result showe... |
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| Keywords: | urea-N ammonia volatilization simulated wind tunnel method |
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