Journal of Tianjin Agricultural University ›› 2015, Vol. 22 ›› Issue (4): 17-20.

• Orginal Article • Previous Articles     Next Articles

Effects of Different Phosphate Fertilizers on Physiological Characteristics of Leaves and Yield in Spring Maize Zhongdan509

SHI Bo-wen, SU Dong-wei, YUAN Ying, XU Lian-na, TIAN Xiu-ping*   

  1. College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300384, China
  • Received:2015-06-01 Published:2015-12-31

Abstract: Maize is the largest crop in China. Fertilizers show significant impact on maize growth and yield improvement. In this study, Zhongdan509, a spring maize cultivar recommended in Tianjin, was used to analyze the physiological characteristics of leaves and yield under different levels of phosphate supplement. The results show that photosynthetic rates and chlorophyll content reached the maximum on flowering time. Leaves photosynthetic rates, chlorophyll content and yield could reach the maximum when the phosphate fertilizer was at the level of 75.00 kg/hm2. Leaves photosynthetic rates, chlorophyll content and yield showed significant differences between each other, except for a few growing period. This research established a correlation between phosphate supplement and yield. So, some theoretical and technical guidance are provided for the application of phosphate fertilizer to obtain high efficiency and high yield of Zhongdan509.

Key words: maize, zhongdan509, phosphate fertilizer, physiological characteristics of leaves, chlorophyll content, yield

CLC Number: