控释肥与普通尿素组合对水稻产量、氮肥利用率和米质的影响
Effects of Combination of Controlled-Release Fertilizer and Common Urea on Yield,Nitrogen Use Efficiency and Grain Quality in Rice
周舟 1沈炘垭 1王俊 1刘立军1
作者信息
- 1. 扬州大学江苏省作物遗传生理重点实验室/江苏省粮食作物现代产业技术协同创新中心,225009,江苏扬州
- 折叠
摘要
为探明控释肥与普通尿素组合施用对水稻产量、氮肥利用效率和稻米品质的影响,以常规粳稻品种南粳9108和淮稻5号为材料,在施氮总量相同条件下研究了单施普通尿素(UR)、单施控释氮肥(CF)和普通尿素与控释氮肥组合施用(CF+UR)对上述2个水稻品种产量、氮肥利用效率和米质的影响.结果表明,2个品种3个施氮处理的产量均表现为CF+UR＞UR＞CF.CF+UR较UR和CF产量分别提高了 4.7％～6.1％和8.3％～9.8％.有效穗数和穗粒数不同程度增加是CF+UR产量高于UR和CF的主要原因.CF+UR处理的氮肥农学利用率、氮肥吸收利用率、氮肥偏生产力较UR分别提高了 14.3％～16.9％、10.1％～11.6％、5.6％～6.1％,较CF分别提高了27.1％～27.8％、42.1％～47.7％、8.9％～9.8％.与UR相比,CF处理可使稻米垩白增加,蛋白质含量降低,食味值提高.CF+UR处理可使食味值略有增加,而其他品质指标与UR无明显差异.控释氮肥与普通尿素组合施用有利于提高水稻产量和氮肥利用效率,并改善稻米的食味值.
Abstract
In order to investigate the effects of combined application of controlled release fertilizer and common urea on rice yield,nitrogen use efficiency and rice quality,conventional japonica rice varieties Nanjing 9108 and Huaidao 5 were used as materials.The effects of single application of common urea(UR),single application of controlled release nitrogen fertilizer(CF)and combined application of common urea and controlled release nitrogen fertilizer(CF+UR)on yield,nitrogen use efficiency and rice quality of the above two rice varieties were studied under the same total nitrogen application rate.The results showed that the yield of two varieties under three nitrogen treatments was CF+UR＞UR＞CF.The yield of CF+UR increased by 4.7％-6.1％and 8.3％-9.8％compared with that of UR and CF,respectively.The yield of CF+UR was higher than that of UR and CF with the increase of effective panicle number and grain number per panicle.The agronomic utilization rate,absorption utilization rate and partial productivity of nitrogen fertilizer in CF+UR treatment were increased by 14.3％-16.9％,10.1％-1 1.6％and 5.6％-6.1％compared with UR,and increased by 27.1％-27.8％,42.1％-47.7％and 8.9％-9.8％compared with CF,respectively.Compared with UR,CF treatment could increase the chalkiness,decrease the protein content and increase the taste value of rice.CF+UR treatment could increase the taste value slightly,but there was no significant difference between CF+UR and other quality indexes.Combined application of controlled release nitrogen fertilizer and common urea was beneficial to increase rice yield and nitrogen use efficiency,and improve rice taste value.
关键词
水稻/控释肥/产量/氮肥利用率/稻米品质Key words
Rice/Controlled-release fertilizer/Yield/Nitrogen use efficiency/Rice quality引用本文复制引用
基金项目
江苏省农业科技自主创新资金项目(CX231035)
国家自然科学基金(32071947)
出版年
2024
国家科技期刊平台
NSTL
万方数据