| 宁南干旱半干旱区不同施磷量对谷子产量及水分利用效率的影响 |
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| 引用本文： | 罗世武,杨军学,张尚沛,王勇,岳国强,程炳文.宁南干旱半干旱区不同施磷量对谷子产量及水分利用效率的影响[J].安徽农业科学,2014(30):10506-10507. |
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| 作者姓名： | 罗世武 杨军学 张尚沛 王勇 岳国强 程炳文 |
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| 作者单位： | 宁夏固原市农业科学研究所,宁夏固原,756000 |
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| 基金项目： | 国家谷子糜子产业技术体系项目，宁南山区小杂粮种质资源和新品种选育项目 |
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| 摘 要： | 目的]为宁南干旱半干旱区谷子（Setaria italica）生产中合理施磷、充分利用潜在的磷素资源提供科学依据,以期更好指导当地谷子科学施肥.方法]设施纯磷0（CK） 、45、90、135、180、225 kg/hm^2 6个处理;一次性基施尿素300 kg/hm^2,硫酸钾150 kg/hm^2.结果]在宁南干旱半干旱区,在基施定量的氮肥和钾肥的基础上,增施一定比例的磷肥,谷子产量发生明显变化,施纯磷0、45、90、135、180、225 kg/hm^2 6个处理产量分别为4 855.80、5 018.10、5 220.45、5 471.55、4 915.80、5 773.95 kg/hm^2,施纯磷135、225 kg/hm^2处理与0kg/hm^2处理差异极显著;6个处理间农艺性状差异不大;施纯磷45 kg/hm^2处理水分利用效率最低为16.61 kg/（hm^2.mm）,施纯磷225kg/hm^2处理水分利用效率最高为20.50 kg/（hm^2.mm）.结论]在宁南干旱半干旱区,施纯磷225 kg/hm^2、纯氮139.2 kg/hm^2、纯钾67.5 kg/hm^2组合,谷平增产效果最大,水分利用效率最高.
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| 关 键 词： | 谷子 磷肥试验 宁南干旱半干旱区 |
Effects of Different Phosphorus (P) Fertilizer Application Amount on Yield and Water Use Efficiency of Millet(Setaria italica) in the Arid and Semi-arid Region of Southern Ningxia |
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| LUO Shi-wu,YANG Jun-xue,ZHANG Shang-pei,WANG Yong,YUE Guo-qiang,CHENG Bing-wen.Effects of Different Phosphorus (P) Fertilizer Application Amount on Yield and Water Use Efficiency of Millet(Setaria italica) in the Arid and Semi-arid Region of Southern Ningxia[J].Journal of Anhui Agricultural Sciences,2014(30):10506-10507. |
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| Authors: | LUO Shi-wu YANG Jun-xue ZHANG Shang-pei WANG Yong YUE Guo-qiang CHENG Bing-wen |
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| Institution: | et al (Guyuan Institute of Agricultural Sciences of Ningxia, Guyua, Ningxia 756000) |
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| Abstract: | Objective] The aim was to provide a scientific basis for reasonably applying P fertilizer and fully using potential P resources in millet production in the arid and semi-arid region of southern Ningxia, and then to better guide the scientific application fertilizer in the local millet production. Method] Six treatments of 0（CK） , 45, 90, 135, 180, 225 kg/hm^2 pure P fertilizer application amount were designed; one-off application amount of urea and K2SO4 was 300 and 150 kg,/hm^2 respectively as the basic fertilizer. Result] In the arid and semi-arid region of southern Ningxia, based on quantitative N fertilizer and K fertilizer as the basic fertilizer, to apply a certain ratio of P fertilizer made the millet yield changed significantly, and the yield of 0, 45, 90, 135, 180, 225 kg/hm^2 pure P fertilizer amount treatments was 4 855.80, 5 018.10, 5 220.45, 5 471.55, 4 915.80, 5 773.95 kg/hm^2, resp. , the treatments of 135, 225 kg,/hm^2 pure P fertilizer amount treatments had significant difference with 0 kg/hm^2 pure P fertilizer amount treatment; there were a little difference among 6 treatments; the water use ef- ficiency of 45 kg/hm^2 pure P fertilizer amount treatment was the lowest of 16.61 kg/（ hm^2. mm） , and that of 225 kg/hm^2 pure P fertilizer a- mount treatment was the highest of 20. 50 kg/（ hm^2. mm）. Conclusion] In the arid and semi-arid region of southern Ningxia, the yield-increasing effect of the application amount combinations of pure P 225 kg/hm^2 , pure N 139.2 kg/hm^2 , pure 67.5 kg/hm^2 is the biggest and its water use efficiency is the highest. |
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| Keywords: | Millet P fertilizer test The arid and semi-arid region of southern Ningxia |
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