Effect of Long-term Application of Chemical Fertilizer on the Quality of Summer Maize

Mingzhang Yuan,Shutang Liu,Guangkai Zhang,Yanling Chen,Zhenwu Nan,Jintao Liu,Bin Liang

doi:10.19026/ajfst.11.2364

Abstract

The study on the effect of fertilization on the quality of maize grain was conducted based on continue application of fertilizer for 26 and 36 years in gleyic cambisols. The amounts of protein, starch, fat and amino acid were determined and the amino acid was analyzed by cluster analysis. The results showed: Long-term fertilization 26 years showed that N2K and N2P processing protein content as high as 9.01, 9.01%, lowest comparing CK treatment is 5.52%; all fertilizer treatments reduced the summer maize starch content, including N2PK deal with relatively high starch content is 57.55%; N2K processing crude fat content as high as 5.95%; N2P processing total amino acids and essential amino acid content is the highest, 8.13 and 3.22%, respectively. Long-term fertilization 36 years (2013) summer maize grain each nutrition indicators in line with 26 years change rule.

Highlights

Compared to the long-term fertilization experiment with routine test, has for a long time and climate advantages, provided data to solve many theoretical and practical problems has an important role (Zhao and Zhang, 2002)
Effect of long-term fertilization on the fat of summer maize grain: The starch content of all fertilizer treatments than CK treatment were increased, fertilizing influence crude fat content of maize kernels. 26 years long-term experiment shows that N2K processing content up to 5.75%, compared with the CK treatment increased by 1.54%; N2P processing second-highest is 5.09%; N2 treatment adipose content is higher than N1, both differ by 0.52%
The results showed that the factors influencing the summer maize protein content of the main is N, followed by P element, the last is the K factor

Summary

Introduction

Compared to the long-term fertilization experiment with routine test, has for a long time and climate advantages, provided data to solve many theoretical and practical problems has an important role (Zhao and Zhang, 2002). Feng et al (2006) of waxy corn in autumn sowing date tests found, there was no significant change of pure corn seeding time found during grain filling the changing trends of main quality components, but had a great influence on the content of main quality components. This study use began in 1978 the Laiyang non calcareous fluvo aquic soil, long-term fertilization, respectively, to study the effect of 2003 and 2013 nitrogen fertilizer and the combined application of phosphorus and potassium on grain quality of summer maize, aimed at for rational fertilization in maize, the production of high quality corn provides a theoretical basis

Methods

Results

Conclusion