木霉生物有机肥对盐渍化土壤肥力及杭白菜产量和品质的影响
Effects of Trichoderma Bio-organic Fertilizer on Salinized Soil Fertility and Yield and Quality of Hang Cabbage
展文洁 1周犇 1朱林星 1王敏 1朱长太 2沈其荣 1郭世伟1
作者信息
- 1. 南京农业大学资源与环境科学学院/江苏省固体有机废弃物资源化高技术研究重点实验室,南京 210095
- 2. 吉林省东辽县渭津镇农业技术推广站,吉林辽源 136601
- 折叠
摘要
为研究生物有机肥对盐渍土壤化学性状及设施蔬菜生长的影响,以杭白菜为试验材料,共设置盆栽和田间试验,盆栽试验共设置4个不同浓度木霉孢子液,对杭白菜地上部干重、茎粗、SPAD值及根系生长指标进行测定;田间试验共设置中药渣有机肥(OF)、中药渣有机肥+木霉(BOF-1)、中药渣有机肥+木霉(BOF-2)、鸡粪有机肥+木霉(BOF-3)4个处理,对杭白菜产量、养分及品质,土壤性状及酶活等进行测定.结果表明,与对照相比,106 CFU/g木霉孢子液处理下杭白菜干重、茎粗、SPAD值、根系生长指标均明显增加.田间试验中,与OF处理相比,BOF-2处理和BOF-3处理增加杭白菜产量,促进作物对磷钾养分吸收,降低杭白菜硝酸盐含量;降低土壤电导率和交换性钠含量,并提高土壤磷酸酶活性.Spearman相关性和随机森林分析结果证明,土壤磷酸酶活性、pH与土壤EC是影响杭白菜产量的重要指示因子.综上,施用木霉生物有机肥(3.0t/hm2)是提高杭白菜产量和品质的有效措施.
Abstract
In order to study the effects of bio-organic fertilizer on the chemical properties of saline soil and the growth of cultivated vegetables,a pot experiment and a field experiment were conducted with Hang cabbage as the test material.Four different concentrations of Trichoderma spore liquid were set up in the pot experiment to determine the aboveground dry weight,stem diameter,SPAD value and root growth index of Hang cabbage.The field experiment assessed the yield,nutrient and quality,soil properties,and enzyme activity of Hang cabbage using different organic fertilizers including Chinese medicine residue(OF),Chinese medicine residue+Trichoderma(BOF-1),Chinese medicine residue+Trichoderma(BOF-2),and chicken manure+Trichoderma(BOF-3).The results showed that dry weight,stem diameter,SPAD value and root growth index of Hang cabbage were significantly increased under the treatment of 106 CFU/g Trichoderma spore solution compared with control.In field experiments,compared with OF treatment,BOF-2 and BOF-3 treatments increased the yield of Hang cabbage,promoted the uptake of phosphorus and potassium nutrients,and reduced the nitrate content of Hang cabbage.And soil electrical conductivity and exchangeable sodium content were decreased,and soil phosphatase activity was increased.Spearman correlation and random forest analysis showed that soil phosphatase activity,pH and soil EC were important indicators affecting the yield of Hang cabbage.In conclusion,the application of Trichoderma bioorganic fertilizer(3.0 t/hm2)is an effective measure to improve the yield and quality of Hang cabbage.
关键词
盐渍土/生物有机肥/杭白菜/产量与品质/土壤酶活Key words
saline soil/biological organic fertilizer/Hang cabbage/yield and quality/soil enzyme activity引用本文复制引用
基金项目
国家自然科学基金面上项目(32072673)
中央高校基本科研业务费专项(XUEKEN2022006)
国家重点研发计划(2022YFD1900704)
出版年
2024
国家科技期刊平台
NSTL
万方数据