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冷浸田测土配方施肥技术对水稻产量及施肥效应的影响

Effects of soil testing and formulated fertilization on rice yield and fertilization effect in cold waterlogged paddy field

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【作者】 徐培智解开治刘光荣徐昌旭黄旭唐拴虎蒋瑞萍李苹

【Author】 XU Pei-zhi1,XIE Kai-zhi1,LIU Guang-rong2,XU Chang-xu2,HUANG Xu1,TANG Shuan-hu1,JIANG Rui-ping1,LI Ping1(1.Soil and Fertilizer Research Institute,GAAS/ Key Laboratory of Plant Nutrition and Fertilizer in South Region,Ministry of Agriculture/Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation,Guangzhou 510640,China;2.Soil and Fertilizer Institute,Jiangxi Academy of Agricultural Science,Nanchang 330200,China)

【机构】 广东省农科院土壤肥料研究所/农业部南方植物营养与肥料重点实验室/广东省养分资源循环利用与耕地保育重点实验室江西省农科院土壤肥料与资源环境研究所

【摘要】 针对冷浸田土壤养分有效性低的特征,研究测土配方施肥对水稻产量的影响,以及施用氮磷钾肥的肥料效应,为特定土壤条件下肥料配方提供科学依据。通过"3414"回归最优设计原理的方法设置水稻肥效试验,结果表明:与对照(CK)相比,各配方施肥处理水稻的产量均有所提高;14个处理中以N2P2K2处理(每667 m2施N 10 kg、P 3 kg、K 8 kg)的水稻产量最高,每667 m2早晚稻分别为434.6 kg和450.5 kg;N、P、K 3种主要元素中,N对水稻产量影响最大。综合肥料间互作效应拟合方程和最佳经济施肥量,结合当地农业生产实际和施肥经验,建议推荐水稻每667 m2施肥量为氮肥11~13 kg,磷肥3~4 kg,钾肥8~11 kg。

【Abstract】 As the characteristic of low efficiency of soil nutrient in cold waterlogged paddy field,experiment was conducted to study the effects of soil testing and formulated fertilization on rice yield and fertilization response to NPK,which could provide scientific evidence for fertilizer formula in special soil.Fertilizer response experiment was designed by "3414" method with regression optimal design principle.The results showed that yields of treatments with formula fertilization were higher than that of CK.Besides,treatment of N2P2K2(10 kg N,3 kg P and 8 kg K per 667 m2) had the highest grain yield with 434.6 kg for early rice and 450.5 kg for late rice,respectively.N played the most important effects on rice yield among elements of N,P,K.The optimal economic fertilizer rate and equation could be fitted by integration of the interaction effect of fertilizers.Combined with the local agricultural production practice and fertilization experience,the recommend fertilizer application rate were 11~13 kg for N fertilizer,3~4 kg for P fertilizer and 8~11 kg per 667 m2 for K fertilizer.

【基金】 国家公益性行业(农业)科研专项(201003059);广东省现代农业产业技术体系专项(粤财教[2009]356号)
  • 【文献出处】 广东农业科学 ,Guangdong Agricultural Sciences , 编辑部邮箱 ,2012年22期
  • 【分类号】S511
  • 【被引频次】16
  • 【下载频次】142
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