首页|基于"3414"试验模型的四川盆地中部水稻氮磷钾肥效应研究

基于"3414"试验模型的四川盆地中部水稻氮磷钾肥效应研究

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本研究采用"3414"肥料效应田间试验,旨在确定四川盆地中部资中县水稻的最佳施肥量,并构建高产施肥模型.通过设置氮、磷、钾3因素,每个因素4个水平,共14个处理,每个处理重复3次.结果表明:建立的三元二次肥料效应回归方程的相关系数(R2)为0.976.纯氮施用量为215.28 kg/hm2,五氧化二磷施用量为101.40 kg/hm2,氧化钾施用量为104.14 kg/hm2,水稻最大产量为7923.56 kg/hm2;纯氮最佳施用量为196.83 kg/hm2,五氧化二磷施用量为74.81 kg/hm2,氧化钾施用量为102.90 kg/hm2,水稻最佳产量为7867.96kg/hm2.建立的肥料效应模型可在四川盆地中部类似水稻产区推广,用于水稻生产上对施肥量的预测.
Effect of Nitrogen,Phosphorus and Potassium Fertilizer on Rice in Central Sichuan Basin Based on'3414'Experimental Model
To obtain the optimal fertilization amount for rice in central Sichuan Basin,the'3414'fertilizer effect field experiment was conducted to establish a high-yield fertilizer model and provide a precise fertilization scheme for rice production in Zizhong County.Three factors of nitrogen,phosphorus and potassium fertilizers were set up,with four levels for each factor.There were a total of 14 treatments,and each treatment was repeated three times.The results showed that the correlation coefficient(R2)of the established ternary quadratic fertilizer effect regression equation was 0.976.The maximum yield of rice was 7923.56 kg/hm2 with 215.28 kg/hm2 of pure nitrogen application,101.40 kg/hm2 of phosphorus pentoxide and 104.14 kg/hm2 of potassium oxide application.The optimal application of pure nitrogen was 196.83 kg/hm2,phosphorus pentoxide 74.81 kg/hm2,potassium oxide 102.90 kg/hm2,and the optimal yield of rice was 7867.96 kg/hm2.The established fertilizer effect model can be extended to similar rice producing areas in the central Sichuan Basin for predicting fertilizer application in rice production.

rice'3414'testfertilizeryieldSichuan Basinbasin fertilizer effectfield experimentfertilization modelrice production

姚莉、蔡红梅、王宏、刘海涛、蔡恺、吴月颖、张奇、林超文

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四川省农业科学院农业资源与环境研究所,成都 610066

资中县农业农村局,四川内江 641299

水稻 "3414"试验 肥料 产量 四川盆地 盆地肥料效应 田间试验 施肥模型 水稻生产

国家现代农业产业技术体系"四川豆类杂粮创新团队"国家重点研发计划课题"1+9"揭榜挂帅科技攻关四川省财政自主创新专项项目

sccxtd-2022-202022YFD19014051+9KJGG0052023ZZCX013

2024

中国农学通报
中国农学会

中国农学通报

CSTPCD
影响因子：0.891
ISSN：1000-6850
年,卷(期)：2024.40(29)