化肥减量条件下喷施锌肥对水稻生长和稻谷锌含量的影响  

Effects of zinc fertilizer spraying on rice growth and zinc content in rice under the condition of chemical fertilizer reduction

作　　者：李梦妮 吴鲁洁 叶正钱[2] LI Mengni;WU Lujie;YE Zhengqian(Yueqing Agriculture and Rural Bureau,Yueqing 325600,Zhejiang;Zhejiang Provincial Key Laboratory of Bioremediation of Soil Pollution,Zhejiang A&F University,Hangzhou 311300,Zhejiang)

机构地区：[1]乐清市农业农村局,浙江乐清325600 [2]浙江农林大学浙江省土壤污染生物修复重点实验室,浙江杭州311300

出　　处：《浙江农业科学》2024年第8期1873-1878,共6页Journal of Zhejiang Agricultural Sciences

摘　　要：该试验旨在探究在化肥减量条件下,叶面喷施锌肥对水稻生长、产量和稻谷中锌含量的影响。通过在田间试验中设置5%、10%和20%的化肥减量梯度,同时在水稻孕穗期喷施锌肥。试验表明,与常规施肥相比,叶面喷施锌肥能够促进水稻生长。与常规施肥相比,在化肥减量5%条件下,水稻结实率、千粒重和产量分别增加3.64%、4.37%和8.17%;稻谷中氮和锌含量分别显著增加25.33%、43.14%,磷含量增加11.14%。此外,随着化肥用量的下降,土壤有机质含量不断增加,化肥减量20%时土壤有机质含量增加9.91%。叶面锌肥的施用能够提高水稻产量,提高稻谷中的锌水平,同时在化肥减量5%的条件下能够获得最大的作用效果,可以作为化肥减量增效的一项技术措施进行应用与推广。The purpose of this study was to explore the effect of foliar zinc spraying on rice growth,yield and zinc content in rice under the condition of chemical fertilizer reduction.By setting up fertilizer reduction gradients of 5%,10%and 20%in field experiments,zinc fertilizer was sprayed at the booting stage of rice.Experiments have shown that foliar zinc spraying can promote rice growth compared with conventional fertilization.Compared with conventional fertilization,the seed setting rate,1000-grain weight and yield of rice increased by 3.64%,4.37%and 8.17%,respectively,and the contents of nitrogen,zinc and phosphorus in rice increased by 25.33%,43.14%and 11.14%,respectively,under the condition of 5%reduction of chemical fertilizer.In addition,with the decrease of chemical fertilizer use,the soil organic matter content increased,and the soil organic matter content increased by 9.91%when the chemical fertilizer was reduced by 20%.The application of foliar zinc fertilizer can improve rice yield,increase the level of zinc in rice,and obtain the maximum effect under the condition of 5%reduction of chemical fertilizer,which can be applied and promoted as a technical measure for chemical fertilizer reduction and efficiency increase.

关 键 词：化肥减量 锌肥 叶面喷施 水稻产量 

分 类 号：S511[农业科学—作物学]