冷浸田测土配方施肥技术对水稻产量及施肥效应的影响

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NEP2Kz处理（每667m2施N10kg、P3kg、K8kg）的水稻产量最高，每667m2早晚稻分别为434．6kg和450．5kg；N、P、K3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667m2施肥量为氮肥11～13kg，磷肥3-4kg，钾...

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Published in广东农业科学 Vol. 39; no. 22; pp. 70 - 73
Main Author 徐培智 解开治 刘光荣 徐昌旭 黄旭 唐拴虎 蒋瑞萍 李苹
Format Journal Article
LanguageChinese
Published 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,广东广州,510640%江西省农科院土壤肥料与资源环境研究所,江西南昌,330200 2012
Subjects
“3414”试验
冷浸田
施肥效益
水稻
测土配方施肥
测土配方施肥
水稻
施肥效益
"3414"试验
冷浸田
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ISSN1004-874X

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Summary: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NEP2Kz处理（每667m2施N10kg、P3kg、K8kg）的水稻产量最高，每667m2早晚稻分别为434．6kg和450．5kg；N、P、K3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667m2施肥量为氮肥11～13kg，磷肥3-4kg，钾肥8-11kg。
Bibliography:44-1267/S
XU Pei-zhi, XIE Kai-zhi, LIU Guang-rong, XU Chang-xu, HUANG Xu, TANG Shuan-hu, JIANG Rui-ping, LI Ping （1.Soil and Fertilizer Research Institute, GAAS/ Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of A griculture/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）
cold waterlogged paddy field; rice; ＂3414＂ experiment; soil and formulated fertilization; fertilization effect
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 formu
ISSN:1004-874X