APP下载

辣根素水乳剂对连作辣椒生长及土壤酶活性的影响

2021-03-25高晶霞吴雪梅牛勇琴高昱谢华

江苏农业学报 2021年1期

高晶霞 吴雪梅 牛勇琴 高昱 谢华

摘要: 通过对20%的辣根素水乳剂进行不同剂量的调制,分析不同药量处理对连作辣椒生长、光合特性以及土壤酶活性的影响。结果显示,施加不同体积质量分数的辣根素水乳剂改善了连作辣椒的生长特性,提高了辣椒株高、茎粗等生物量;同时改善了土壤酶活性,有效提升了连作辣椒的生长活力;不同体积质量分数辣根素水乳剂对土壤及辣椒植株生长的改善能力不同,需要科学调配到最优体积质量分数。

关键词: 辣根素;连作;辣椒;光合特性;土壤酶活性

中图分类号: S641.3 文献标识码: A 文章编号: 1000-4440(2021)01-0116-05

Effect of athomin water emulsion on growth and soil enzyme activities of continuous cropping pepper

GAO Jing-xia1, WU Xue-mei2, NIU Yong-qin2, GAO Yu2, XIE Hua1

(1. Institute of Germplasm Resources, Ningxia Academy of Agricultural and Forestry Sciences, Yinchuan 750002, China;2.Vegetable Industry Development Service Center of Pengyang County, Ningxia Hui Autonomous Region, Pengyang 756500, China)

Abstract: In this study, the effects of different doses of 20% athomin water emulsion on growth, photosynthetic characteristics and soil enzyme properties of continuous cropping pepper were analyzed after preparing the solutions with different doses. The results showed that the growth characteristics and indexes like plant height, stem thick of continuous cropping pepper were improved by applying athomin water emulsion with different ratios of volume to mass. The athomin water emulsion with different ratios of volume to mass also improved soil enzyme activities and promoted the growth vatality of pepper effectively. Since the improvement ability of athomin water emulsion with different ratios of volume to mass on soil and pepper is different, it is necessary to optimize the ratio of volume to mass.

Key words: athomin;continuous cropping;pepper;photosynthetic characteristics;soil enzyme activity

在目前蔬菜种植中,困扰农户的主要问题是辣椒连作的问题,辣椒连作容易导致土壤酶活性降低、菌群失调以及病虫害增加,从而导致土壤的整体生产能力下降,与此同时,过多的农药以及化肥在土壤中残留,进一步破坏了土壤的修复能力,造成了严重的环境生态问题,这些因素都是辣椒连作带来的连锁反应,严重影响了辣椒作物的生长发育[1-3]。针对这种情况,目前常用的做法是對土壤进行消毒,恢复土壤的自我修复能力。有学者研究发现土壤的消毒措施可以提升土壤酶活性,降低土壤病虫害,为部分经济作物的连作提供了基础保障[4-6]。也有学者通过混合多种农药,通过调节农药成分,尽可能修复土壤酶活性,降低土壤病虫害等影响,同时研究混合农药对土壤酶活性的影响[7]。

目前学者主要通过施用各种调配农药来实现辣椒等连作经济作物的土壤修复,较少涉及对连作经济作物本身生长特性的分析,同时没有考虑植物性农药对连作经济作物土壤的修复能力。……

登录APP查看全文