| 不同施肥水平对粤北坡岗地木薯干物质积累和产量的影响 |
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| 引用本文： | 高志红,陈晓远,林昌华,张宇鹏,张素英.不同施肥水平对粤北坡岗地木薯干物质积累和产量的影响[J].广东农业科学,2011,38(4):70-71,93. |
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| 作者姓名： | 高志红 陈晓远 林昌华 张宇鹏 张素英 |
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| 作者单位： | 1. 韶关学院英东农业科学与工程学院,广东 韶关,512005
2. 翁源县农业技术推广中心,广东翁源,512600 |
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| 基金项目： | “十一五”国家科技支撑计划项目(2008BADA4B10-09) |
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| 摘 要： | 在粤北翁源坡岗地采用3414试验方案,开展不同施肥水平对木薯干物质积累和产量影响的研究。结果表明,不同施肥处理对木薯干物质积累影响显著,在不施肥情况下,木薯生长缓慢,干物质积累速度小,生育期提前。在氮磷钾三要素中,氮是木薯产量第一限制因子,磷是第二限制因子,钾是第三限制因子。随着氮、磷、钾单一养分用量增加,木薯产量随之增加,但氮肥过量和钾肥过量均不利于增产。在14个施肥水平处理中,施肥效果最佳的是N2P3K2处理,其次是N2P2K2处理。
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| 关 键 词： | 坡岗地 木薯 干物质积累 产量 |
Efect of diferent NPK level on cassava dry matter accumulation and yields in sloping soil of Northern Guangdong |
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| GAO Zhi-hong,CHEN Xiao-yuan,LIN Chang-hua,ZHANG Yu-peng,ZHANG Su-ying.Efect of diferent NPK level on cassava dry matter accumulation and yields in sloping soil of Northern Guangdong[J].Guangdong Agricultural Sciences,2011,38(4):70-71,93. |
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| Authors: | GAO Zhi-hong CHEN Xiao-yuan LIN Chang-hua ZHANG Yu-peng ZHANG Su-ying |
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| Institution: | GAO Zhi-hong1,CHEN Xiao-yuan1,LIN Chang-hua1,ZHANG Yu-peng1,ZHANG Su-ying2(1.Yingdong College of Bioengineering,Shaoguan University,Shaoguan 512005,China,2.Agriculture and technology Spreading Centre of WengYuan County,Wengyuan 512600,China) |
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| Abstract: | By using the method of 3414field trials in sloping soil of Wengyuan,Northern Guangdong,the effects of different NPK level on cassava dry matter accumulation and yields were studied.The results obtained were as follows: Different NPK level had notable effect on cassava dry matter accumulation.For the no NPK treatment cassava plant,its growth became slow,rate of dry matter accumulation became low,and growth period became advanced.For cassava yields,N was the first restricting factor,P2O5 was the second,and K2... |
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| Keywords: | Slopping soil cassava dry matter accumulation yield |
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