基于“3414”试验模型的四川盆地中部水稻氮磷钾肥效应研究  

Effect of Nitrogen,Phosphorus and Potassium Fertilizer on Rice in Central Sichuan Basin Based on‘3414’Experimental Model

作　　者：姚莉[1] 蔡红梅 王宏[1] 刘海涛[1] 蔡恺 吴月颖 张奇[1] 林超文[1] YAO Li;CAI Hongmei;WANG Hong;LIU Haitao;CAI Kai;WU Yueying;ZHANG Qi;LIN Chaowen(Agricultural Resources and Environment Institute,Sichuan Academy of Agricultural Sciences,Chengdu 610066;Agriculture and Rural Bureau of Zizhong County,Neijiang,Sichuan 641299)

机构地区：[1]四川省农业科学院农业资源与环境研究所,成都610066 [2]资中县农业农村局,四川内江641299

出　　处：《中国农学通报》2024年第29期75-79,共5页Chinese Agricultural Science Bulletin

基　　金：国家现代农业产业技术体系“四川豆类杂粮创新团队”(sccxtd-2022-20);国家重点研发计划课题“丘陵山地坡耕地增碳固碳消障绿色生产技术模式构建与应用”(2022YFD1901405);“1+9”揭榜挂帅科技攻关“耕地质量提升与环境治理重大技术”(1+9KJGG005);四川省财政自主创新专项项目“油菜化肥减量增效的土壤学机制研究”(2023ZZCX013)。

摘　　要：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(R^(2))为0.976。纯氮施用量为215.28 kg/hm^(2),五氧化二磷施用量为101.40 kg/hm^(2),氧化钾施用量为104.14 kg/hm^(2),水稻最大产量为7923.56 kg/hm^(2);纯氮最佳施用量为196.83 kg/hm^(2),五氧化二磷施用量为74.81 kg/hm^(2),氧化钾施用量为102.90 kg/hm^(2),水稻最佳产量为7867.96 kg/hm^(2)。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。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(R^(2))of the established ternary quadratic fertilizer effect regression equation was 0.976.The maximum yield of rice was 7923.56 kg/hm^(2)with 215.28 kg/hm^(2)of pure nitrogen application,101.40 kg/hm^(2)of phosphorus pentoxide and 104.14 kg/hm^(2)of potassium oxide application.The optimal application of pure nitrogen was 196.83 kg/hm^(2),phosphorus pentoxide 74.81 kg/hm^(2),potassium oxide 102.90 kg/hm^(2),and the optimal yield of rice was 7867.96 kg/hm^(2).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.

关 键 词：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 

分 类 号：S633.4[农业科学—蔬菜学]