华南农业大学学报2026，Vol.47Issue(5)：878-885,8.DOI:10.7671/j.issn.1001-411X.202512020
禾虫投放密度对稻-禾虫共作系统水稻生长特性、产量和品质的影响
Effects of Tylorrhynchus heterochaetus stocking density on rice growth characteristics,yield and quality in a rice-Tylorrhynchus heterochaetus co-culture system
摘要
Abstract
[Objective]To investigate the effects of different Tylorrhynchus heterochaetus stocking densities on rice growth characteristics,yield and quality in a rice-T.heterochaetus co-culture system in the double-cropping rice region of South China,aiming to provide a reference for optimizing rice-T.heterochaetus co-culture technique.[Method]A two-season field experiment was conducted during the early and late rice seasons of 2023.Four treatments were established:Conventional rice monoculture(CK),300 individuals/m2 T.heterochaetus(M1),600 individuals/m2 T.heterochaetus(M2),and 900 individuals/m2 T.heterochaetus(M3)for the co-culture system.The effects of the rice-T.heterochaetus co-culture system on plant height,tiller number,biomass,root-shoot ratio,SPAD value,yield and quality of rice,as well as T.heterochaetus harvest yield were systematically evaluated.[Result]During the tillering and maturity stages of early rice,the plant height of M2 treatment was significantly higher than those of other treatments by 9.56%-15.29%and 3.56%-4.54%,respectively.For late rice at maturity stage,compared with CK,M2 and M3 treatments showed significant increases in plant height by 4.06%and 5.02%,respectively.For early rice,M2 treatment significantly increased tiller number by 12.98%-29.75%compared with other treatments,while for late rice at tillering stage,it increased by 16.40%compared with CK.The biomass and root-shoot ratio of early rice under M2 treatment were significantly higher than those of other treatments by 14.72%-33.63%and 12.89%-17.79%,respectively;For late rice,the increases were 25.04%-50.80%and 5.46%-16.05%,respectively.The yield of early and late rice under M2 treatment increased by 21.52%-37.81%and 10.13%-16.05%,respectively,compared with other treatments;The whole milled rice rate was significantly higher than that of CK by 10.33%and 11.19%,respectively;Grain length significantly raised by 14.16%and 1.43%,respectively,and diameter significantly increased by 7.45%and 2.37%,respectively,compared with CK.The harvest yield of T.heterochaetus under M2 treatment was significantly higher than those under M1 and M3 treatments by 184.28%and 36.08%,respectively.[Conclusion]Under the conditions of this experiment,a T.heterochaetus density of 600 individuals/m2(M2 treatment)was suitable for promoting the growth and productivity of both rice and T.heterochaetus in the rice-T.heterochaetus co-culture system.关键词
稻-禾虫共作系统/禾虫投放密度/水稻产量/生长特性Key words
Rice-Tylorrhynchus heterochaetus co-culture system/Tylorrhynchus heterochaetus stocking density/Rice yield/Growth characteristic分类
农业科技引用本文复制引用
魏华根,赵敏,王勇尚,龚永辉,章家恩,罗明珠..禾虫投放密度对稻-禾虫共作系统水稻生长特性、产量和品质的影响[J].华南农业大学学报,2026,47(5):878-885,8.基金项目
国家重点研发计划(2024YFD2300502) （2024YFD2300502）
广东省重点领域研发计划(2021B0202030002) （2021B0202030002）
广东省现代农业产业技术体系创新团队建设(2022KJ105) （2022KJ105）
