Effects of different intercropping patterns on soil enzyme activity and fungal com-munity of young jackfruit orchard
In order to investigate the effects of different intercropping patterns on soil water content,enzyme activity and fungal community in young jackfruit orchard,young plants of Qiongyin No.8 planted in June of 2021 were used as test materials,and rhizosphere soil samples were collected from orchards under four plant-ing patterns,including jackfruit(CK),jackfruit-pumpkin(BN),jackfruit-pinto peanut(BP),and jackfruit-hard bean(BY)in January of 2022.After intercropping for one year,rhizosphere soil samples of above treat-ments were collected again.Soil moisture and enzyme activity were measured,and rhizosphere microbial com-munities were detected.The results showed that compared with the single cropping mode,intercropping modes significantly increased the soil moisture.The order of soil moisture in the samples collected in June of 2023 was intercropping pumpkin＞intercropping hard bean＞intercropping Pinto peanut＞single cropping.There was no significant correlation between soil enzyme activity and water content,and sucrase activity was positively correlated with that of alkaline phosphatase.The activities of sucrase and urease in soil were signifi-cantly increased by intercropping of pumpkin and hard bean,the activity of alkaline phosphatase was also in-creased.The activities of sucrase and alkaline phosphatase were decreased by intercropping of Pinto peanut.Soil fungal abundance and diversity were reduced by intercropping.The relative abundance of pathogenic fungi such as Ascomycetes,Mortieromyces,Chytridobacteria and Fusarium were decreased,and that of Basidiomy-cetes,Humicillium,Malleolaria and Dermatis were increased,thereby improving the soil microbial commu-nity structure.
万方数据
维普
