Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (21): 183-188.doi: 10.11924/j.issn.1000-6850.2013-3271

Special Issue: 玉米

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Study on Design and Application of Spring Maize Regional Special Compound Fertilizer

  

  • Received:2013-12-16 Revised:2014-01-26 Online:2014-07-25 Published:2014-07-25

Abstract: To get higher yield and high efficient utilization of farmland nutrients, spring maize special compound fertilizer prescriptions were studied and the special compound fertilizers experiments were carried out in Jinzhong City, Shanxi Province. Based on the datum of soil testing and fertilizer project, spring maize special compound fertilizer prescription was designed by scientific nutrient management technologies. The special compound fertilizer prescriptions of two areas were 16-19-10 and 20-12-8, respectively. In order to evaluate the special fertilize, five field trials were conducted. The result showed that the fertilizers could significantly improve maize yield compared with farmers practice. Maize yield increased 16.02% with designed fertilizer (16- 19- 10) and the other one (20- 12- 8) increased 10.01% in comparison with farmers practice. Further, the special compound fertilizer treatment also could increase grain number per spike and 100-seed weight of maize, but reduce barren ear tip length. Meanwhile, nitrogen use efficiency, agronomic efficiency and nitrogen partial factor productivity were remarkably improved by the designed fertilizers treatment. Nitrogen use efficiency of two areas was 30.23% and 28.85%, respectively, which were higher than farmers practice. Nitrogen partial factor productivity was increased by 45.02% and 30.58%.