植物营养与肥料学报2017，Vol.23Issue(4)：1089-1094,6.DOI:10.11674/zwyf.16323
不同剂量外源纤维素酶对设施土壤生物活性与番茄生长的影响
Effects of exogenous cellulase with different dosages on the biological activity and tomato growth in greenhouse soil
摘要
Abstract
[Objectives] The activity of soil cellulase reflects the intensity of soil biochemical process and the level of soil fertility to some extent.The positive effects of adding exogenous cellulase on soil environment and cultivated crops were studied in this paper to provide a reference for facility soil quality improvement.[Methods] Tomato cultivar ‘Fanta’ was used as the test material in a pot experiment.Cellulase was added in 6 dosage into the soil,blank treatment was included.Effects of different exogenous cellulase on soil microbial biomass and enzyme activities were investigated in different growth stages of tomato,and the photosynthetic parameters and tomato yields were measured.[Results] For all the investigated periods,the population of microorganism and the activities of soil enzymes were increased first and then decreased with the increase of the cellulose dosage,with the lowest in CK.Compared with CK,the highest increase in the population of bacteria,fungi and actinomycetes was 996.8％ in T4 at fruiting period,801.4％ in T3 at harvest period and 314.6％ in T3 at early fruit period,respectively;the highest increase in the activities of soil urease,invertase and SOD was in T3 in early fruit period and that of alkaline phosphatase activity was in T3 in early harvest period,the increases were 214.3％,424.3％,254.0％ and 44.0％ in turn.The addition of exogenous cellulase performed positive effects on the tomato plant height,stem diameter and photosynthetic indexes including Pn,Tr,Gs and Ci.The highest yield of tomato was appeared in T3,reaching 55188 kg/hm2.[Conclusions] Addition of suitable amount of exogenous cellulase could improve the activity of soil enzymes,promote the accumulation and reproduction of soil microorganisms,accordingly improve the soil environment,and promote the healthy growth of vegetable crops.The recommended dosage of cellulase is 9 kg/hm2 for the facility soil in this test.关键词
纤维素酶/设施土壤/番茄/微生物种群数量/土壤酶活性Key words
cellulase/greenhouse soil/tomato/microorganism/enzymic activity of soil引用本文复制引用
张丽娟,曲继松,朱倩楠,吴涛..不同剂量外源纤维素酶对设施土壤生物活性与番茄生长的影响[J].植物营养与肥料学报,2017,23(4):1089-1094,6.基金项目
国家科技支撑项目(2014BAD05B02) （2014BAD05B02）
宁夏科技攻关项目(2012ZYH110)资助. （2012ZYH110）
