植物营养与肥料学报2016，Vol.22Issue(5)：1329-1338,10.DOI:10.11674/zwyf.15337
锌肥品种与施用方法对水稻产量和锌含量的影响
Effects of Zn fertilizer types and application methods on grain yield and zn concentration of rice
摘要
Abstract
Objectives]There is a general recognition that zinc (Zn) fertilizer application could increase grain yield and grain Zn concentration of rice in Zn deficiency soils. A normal rice varietyJiponicamaterial was used in order to investigate the effects of different Zn fertilizer types and application methods on rice yield, Zn concentration and accumulation in individual organs of rice 'Zhendao 11'.[Methods]During May 2011 and November 2012, four experiments were carried out in the field. Experiment 1 was conducted with Zn-enriched rice grain with normal planting (CK) and 5 times spray of ZnSO4·7H2O (Zn) as treatment, in order to investigate the grain Zn concentration by staining. Experiment 2 studied different Zn fertilizers which included control (S1), ZnSO4·7H2O (S2), Urea-Zn (S3), Mosaic-Zn (S4), Kali-Zn (S5), transplanting Zn-enriched seedling (S6) and seedling root dip ZnSO4·7H2O solution before transplanting (S7) treatments. Experiment 3 was applying different Zn fertilizers by foliar spray, included control (F1), spray ZnSO4·7H2O at booting stage (F2), spray ZnSO4·7H2O at flowering stage (F3), ZnSO4·7H2O at booting and flowering (F4), ZnSO4·7H2O at flowering with pesticide (F5), Kali-EPSO-Zn spray (F6) and ADOB-IDHA-Zn spray (F7) treatments. Experiment 4 aimed to evaluate the growth performance of Zn-enriched rice grain (Zn-grain) and normal rice grain (CK-grain) and the grain yield, Zn concentration and its accumulation in different organs of rice.[Results]1) The Zn-enriched rice grain can be produced by intensive foliar spray of high concentration of Zn fertilizer in rice growth stages, and the DTZ staining method can be used as a rapid method to estimate Zn concentration in grain. 2) Zn fertilizer application significantly increased the yield and Zn content in rice crops, and there were significant differences among the Zn fertilizer types and application methods. 3) The average yield of rice in treatment with Zn fertilizer used as soil application was significantly higher than that of foliar application (by 6.2%), while the Zn contents of leaf, stem and grain in foliar treatment were significantly higher than those of soil application (by 224.6%, 78.5% and 12.1%, respectively). 4) The increase rate of yield in treatment with complex fertilization of Zn and N or K treatments was significantly higher than the treatment with Zn and P under soil application, while in foliar application the Zn content was increased in Kali-EPSO-Zn treatment, which was significantly higher than that of ADOB-IDHA-Zn and ZnSO4·7H2O treatments. 5) The rice yield and grain Zn concentration were increased by 4.6% and 3.9% when planting the Zn-enriched rice grain (Zn-grain) compared with normal rice grain (CK-grain), respectively.[Conclusions]Application of Zn fertilizer to the soil was more effective than the foliar spray on rice grain yield; however, the foliar spray resulted in a greater increase in grain Zn concentration, when compared with soil application. Therefore, according to local conditions, integrated application of Zn fertilizers as soil application (N and Zn compound fertilizer) with foliar spray (K and Zn compound fertilizer) on selected Zn-enriched rice grain is the best strategy to achieve optimal Zn use efficiency, to maximum yield and to improve the Zn nutritional quality of rice.关键词
水稻/锌肥品种/土施/喷施/产量/锌含量Key words
rice/Zn fertilizer varieties/soil application/foliar application/yield/Zn content分类
农业科技引用本文复制引用
冯绪猛,郭九信,王玉雯,宋立新,刘振刚,陈月坤,张居翠,石佑华,郭世伟..锌肥品种与施用方法对水稻产量和锌含量的影响[J].植物营养与肥料学报,2016,22(5):1329-1338,10.基金项目
国际锌协会合作项目（Zinc Nutrient Initiative MD-86）；HarvestZinc国际合作项目；国家公益性行业（农业）科研专项（201103003，20150312205）资助。 （）
