干旱地区农业研究2016，Vol.34Issue(5)：109-113,5.DOI:10.7606/j.issn.1000-7601.2016.05.17
不同轮作方式对马铃薯土壤酶活性及微生物数量的影响
Effects of different crop rotations on enzyme activities and microbial quantities in potato soil
摘要
Abstract
Field experiments with different rotations were conducted in the soil where potato had been grown for two years .Soil enzyme activities and the number of microorganisms were tested and calculated during 4 growing periods .The results showed that compared with the control (bare) ,there was an increasing trend in soil catalase activity by the wheat- peas - potatoes crop rotation .Soil invertase activity was increased by the peas - potatoes - peas crop rotation and the largest increase was 47 .95% at the potato maturing stage .Soil polyphenol oxidase activity by crop rotations was lower than that by continuous cropping .Soil urease activity was changed obviously under different crop rotations .The urease activity by the peas - potatoes - peas crop rotation was 14 .73% higher than that by wheat - potatoes - wheat rotation during the potato tuber expansion period .The results of root zone soil microorganisms quantities during potato tuber ex-pansion period showed that with the increase of continuous cropping years ,the number of bacteria and total microorgan-isms went declined and fungi quantities were increased by 54 .66% .The number of bacteria and actinomyces were the highest by the wheat - peas - potatoes crop rotation reaching values of 6 .40 × 106 CFU·g - 1 and 2 .22 × 106 CFU·g - 1 , respectively .关键词
马铃薯/轮作方式/土壤酶活性/微生物数量Key words
Potato/crop rotation/soil enzyme activity/microorganism quantity分类
农业科技引用本文复制引用
王丽红,郭晓冬,谭雪莲,郭天文..不同轮作方式对马铃薯土壤酶活性及微生物数量的影响[J].干旱地区农业研究,2016,34(5):109-113,5.基金项目
国家自然科学基金项目（41161042）；国家科技支持计划（2012BAD05B03）；甘肃省干旱生境作物学重点实验室-省部共建国家重点实验室培育基地开放基金项目 （）
