关键词: 板栗仁, 板栗仁, 酶促褐变, 产物, 蒽醌

Abstract:

The change disciplinarian of soil respiration and microbial biomass C during maize growth were studied to illuminate relation between disciplinarian and fertilization, and between disciplinarian and soil types. The effects of maize growth and fertilization on soil respiration and microbial biomass C were investigated in representative soil of south and north China (Black and Red soil) in pot experiment. The results showed that soil respiration and microbial biomass C changed with different growth stages, fertilization treatments and soil textures. The effect of maize growth on contents of soil total N and organic matter, and soil respiration in Black soil was not obvious, but soil microbial biomass C increased with maize growth, and reached maximum at maize large bugle stage. However, soil total N, organic matter, soil respiration and microbial biomass C in Red soil increased with maize growth, and showed maximum at maize large bugle stage. During the maize growth, organic manure treatments increased soil respiration and microbial biomass C in Black and Red soil, but inorganic fertilizers treatments had a little effect on them. Fertilization treatments showed no significant effects on soil total N and organic matter content in Black soil, however, significantly increased soil respiration and microbial biomass C content in Red soil. Besides, organic manure treatments decreased soil microbial metabolic quotient, but inorganic fertilizers treatments increased soil microbial metabolic quotient both in Black soil and in Red soil. In conclusion, not only maize growth stages and fertilization treatments but also soil texture influenced soil respiration and microbial biomass C content.