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OA
Effects of Tylorrhynchus heterochaetus stocking density on rice growth characteristics,yield and quality in a rice-Tylorrhynchus heterochaetus co-culture system
[目的]探究华南双季稻区不同禾虫投放密度对稻-禾虫共作系统水稻生长特性、产量和品质的影响,为优化稻-禾虫共作技术提供参考.[方法]在 2023 年开展早、晚两季的田间试验,设置 4 个处理:常规水稻单作(CK)、300 尾/m2 禾虫(M1)、600 尾/m2 禾虫(M2)及 900 尾/m2 禾虫(M3),系统探究稻-禾虫共作模式对水稻株高、分蘖数、生物量、根冠比、SPAD 值、产量和品质以及禾虫收获量的影响.[结果]在早稻分蘖期和成熟期,M2 处理的株高比其他处理分别显著提高 9.56%～15.29%和 3.56%～4.54%;在晚稻成熟期,M2 和 M3 处理的株高比 CK 分别显著提高 4.06%和 5.02%.早稻 M2 处理的分蘖数较其他处理显著提高 12.98%～29.75%;在晚稻分蘖期,M2 处理的分蘖数较 CK 显著提高 16.40%.在早稻中,M2 处理的生物量和根冠比较其他处理分别显著提高14.72%～33.63%和 12.89%～17.79%,晚稻分别提高 25.04%～50.80%和 5.46%～16.05%.在早、晚稻中,M2 处理的产量比其他处理分别提高 21.52%～37.81%和 10.13%～16.05%;整精米率较 CK 分别显著提高 10.33%和11.19%;粒长较 CK 分别显著提高 14.16%和 1.43%;直径较 CK 分别显著提高 7.45%和 2.37%.M2 处理的禾虫收获量比 M1 和 M3 处理分别显著提高 184.28%和 36.08%.[结论]在本试验条件下,600 尾/m2(M2 处理)禾虫投放密度适宜水稻和禾虫生长.
[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.
魏华根;赵敏;王勇尚;龚永辉;章家恩;罗明珠
华南农业大学 农学院 广东 广州 510642华南农业大学 农学院 广东 广州 510642华南农业大学 农学院 广东 广州 510642华南农业大学 农学院 广东 广州 510642华南农业大学 资源环境学院 广东 广州 510642华南农业大学 农学院 广东 广州 510642
农业科技
稻-禾虫共作系统禾虫投放密度水稻产量生长特性
Rice-Tylorrhynchus heterochaetus co-culture systemTylorrhynchus heterochaetus stocking densityRice yieldGrowth characteristic
《华南农业大学学报》 2026 (5)
878-885,8
国家重点研发计划(2024YFD2300502)广东省重点领域研发计划(2021B0202030002)广东省现代农业产业技术体系创新团队建设(2022KJ105)
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