Study on the Activities of Rhizosphere Soil Enzyme in Different Fertilization Modes During Maize Growth

doi:10.7668/hbnxb.2018.06.027

Abstract

Abstract: In order to reveal the changes of soil enzyme activities under different fertilization treatments and fertilization methods, field experiments were conducted to study the effects of four different microbial fertilizers on soil enzyme activities of three main rhizosphere during maize growth periods. The results showed that the activity of soil enzymes was similar in maize growth period. The activity of sucrase and urease reached the peak at jointing stage, and catalase activity was the highest at maturity stage. Under the lateral application and spread application methods, the mixed application of several microbial fertilizers increased the activity of catalase, while increasing application of Bacillus amylolyticus microbial fertilizer quality helped the activity of invertase and urease to be increased, and the activities of sucrase and urease were increased by 6.3%-9.0% and 4.0%-10.5%, respectively, while the activities of sucrase and urease were increased by 20.7%-68.0% and 18.6%-37.4%, respectively. Compared with the control, the activity of urease were increased by 21.8%-30.4% and 4.6%-14.4%, respectively at different stages. The fertilization methods indicated that the application of strip fertilizer could increase the comprehensive utilization rate of fertilizers and facilitated the full absorption of crops. The research results reflected that the combined application of inorganic fertilizer and microbial fertilizer could improve the rhizosphere soil of maize, increase soil enzyme activity and soil fertility, which enhanced the sustainable productivity of soil. Therefore, the research results could provide a theoretical basis for rational utilization of microbial fertilizers on maize.

Key words: Maize, Soil enzyme activity, Microbial fertilizer

CLC Number:

S144

LIU Lei, WANG Mengliang, WANG Junhong, GAO Xiaoyin. Study on the Activities of Rhizosphere Soil Enzyme in Different Fertilization Modes During Maize Growth[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2018, 33(6): 199-204. doi: 10.7668/hbnxb.2018.06.027.

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