| 河北省唐山地区水稻产量的土壤养分限制因子研究 |
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| 引用本文： | 王素华,冯自军,张树明,张作新.河北省唐山地区水稻产量的土壤养分限制因子研究[J].土壤通报,2011(1):103-105. |
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| 作者姓名： | 王素华 冯自军 张树明 张作新 |
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| 作者单位： | 唐山市农业局土壤肥料站; |
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| 摘 要： | 采用田间试验的方法研究了唐山地区水稻产量的土壤养分限制因子,分析了水稻产量构成因素对其产量的影响。田间试验结果显示,在唐山地区缺氮施肥处理对水稻产量影响较大,与全素处理相比,有效穗数为7个,减少9个,相对产量为40.2%,减产量达5700kghm-2,差异达到显著水平。这表明:氮主要通过减少水稻的有效穗数而影响水稻产量,是水稻产量的主要土壤养分限制因子。
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| 关 键 词： | 水稻 土壤养分 限制因子 |
Investigation on the Soil Nutrients of Rice in Tangshan in Hebei Province |
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| WANG Su-hua,FENG Zi-jun,ZHANG Shu-ming,ZHANG Zuo-xin.Investigation on the Soil Nutrients of Rice in Tangshan in Hebei Province[J].Chinese Journal of Soil Science,2011(1):103-105. |
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| Authors: | WANG Su-hua FENG Zi-jun ZHANG Shu-ming ZHANG Zuo-xin |
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| Institution: | WANG Su-hua,FENG Zi-jun,ZHANG Shu-ming,ZHANG Zuo-xin(Station of Soil and Fertilizer,Agriculture Bureau of Tangshan,Tangshan 063000,China) |
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| Abstract: | The effect of constituent elements of the yield on rice soil nutrients in Tangshan was studied.Field experiment was used in the investigation.The results showed that the yield of rice was decreased significantly by the decreasing nitrogen in Tangshan.Nitrogen treatment reduced panicle number of rice significantly(from 9 to 7).In the meantime,the yield was reduced to 5700 kg hm-2 and the fractional yield was reduced to 40.2%.It was clear that nitrogen was the restrict nutrients of rice. |
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| Keywords: | Rice Soil nutrient Restrictive factor |
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