Journal of Northern Agriculture ›› 2019, Vol. 47 ›› Issue (6): 47-52.doi: 10.3969/j.issn.2096-1197.2019.06.08

• Soil and fertilizer·Plant protection • Previous Articles     Next Articles

Application effects of zinc and manganese fertilizers in rice in Ningxia Irrigation Area of Yellow River diversion

ZHANG Li1, GENG Rong2, REN Yang1   

  1. 1.Zhongning Agricultural Technology Extension Service Center,Zhongning 755100,China;
    2.Agricultural Technology Extension Station of Ningxia Hui Autonomous Region,Yinchuan 750000,China
  • Received:2019-11-02 Published:2020-01-19

Abstract: In order to further optimize the rice fertilization scheme in Ningxia irrigation area to increase production and improve quality,the effects of five different fertilizer treatments (no-micronutrient fertilizer,base Zinc fertilizer,base Manganese fertilizer,basal application+spraying of Zinc fertilizer,and basal application+spraying of Manganese fertilizer) on rice plant height,yield factor,yield,and rice quality were studied to find the appropriate type and application method.The results showed that the basal application and spraying with zinc fertilizer had the best performance for rice plant height and panicle length,while the basal application and spraying with manganese fertilizer had the best performance for rice grain number per panicle and seed number per panicle.The yield of rice treated with basal + zinc fertilizer and manganese fertilizer increased by 872.8 kg/hm2 and 681.6 kg/hm2,respectively,compared with that without microfertilizer(CK),and the yield increased by 9.09% and 7.10%,respectively.The analysis of rice quality factor showed that the basal application of manganese fertilizer or basal application of manganese fertilizer plus spraying could improve the rice protein content,the brown rice rate,the milled rice rate,and the whole milled rice rate,and reduce the carbohydrate content,the chalky grain rate,and the chalkiness.Application of zinc fertilizer or base application+spray application of zinc fertilizer in Ningxia Yellow River irrigation area can increase the protein content and the brown rice rate,and reduce the carbohydrate content.The rate of milled rice and the rate of whole milled rice can be improved by basal application+spraying of Zinc fertilizer.The effect of basal application+spraying of Zinc fertilizer on rice was greater than that of basal applying manganese fertilizer on rice.

Key words: Rice, Trace elements fertilizer, Yield, Quality

CLC Number: 

  • S511