Performance and Cultivation Techniques of Meixiangzhan 2 as Machine-harvested Low Stubble Ratooning Rice in Northern Guangdong

doi:10.3969/j.issn.1006-8082.2023.06.022

China Rice ›› 2023, Vol. 29 ›› Issue (6): 107-109.DOI: 10.3969/j.issn.1006-8082.2023.06.022

• Varieties & Technology • Previous Articles Next Articles

Performance and Cultivation Techniques of Meixiangzhan 2 as Machine-harvested Low Stubble Ratooning Rice in Northern Guangdong

HU Xiangyu¹(), HUANG Zhenbiao², ZHONG Xuhua¹^,^*(), LIANG Kaiming¹, PAN Junfeng¹, LIU Yanzhuo¹, FU Youqiang¹, HU Rui¹, LI Meijuan¹, YE Qunhuan¹

¹Rice Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology for Rice Breeding/Guangdong Rice Engineering Laboratory, Guangzhou 510640, China
²Shixing Institute of Agricultural Sciences, Shixing, Guangdong 512529, China

Received:2023-04-28 Online:2023-11-20 Published:2023-11-21
Contact: *xzhong8@163.com
About author:
1st author： huxiangyu.2@163.com

美香占2号在粤北作低桩机收再生稻的表现及关键栽培技术

胡香玉¹(), 黄振标², 钟旭华¹^,^*(), 梁开明¹, 潘俊峰¹, 刘彦卓¹, 傅友强¹, 胡锐¹, 李妹娟¹, 叶群欢¹

¹广东省农业科学院水稻研究所/广东省水稻育种新技术重点实验室/广东省水稻工程实验室，广州 510640
²始兴县农业科学研究所，广东始兴 512529

通讯作者: *xzhong8@163.com
作者简介:
第一作者：huxiangyu.2@163.com
基金资助:
广东省重点领域研发计划项目(2020B0202090003);广东省自然科学基金(2020A1515110224);广东省自然科学基金(2018A030313463);广东现代农业产业技术体系水稻创新团队(2020KJ105);广东现代农业产业技术体系水稻创新团队(2021KJ105);广东省农业科学院学科团队建设项目(202112TD);2021年省级乡村振兴战略专项(粤财农〔2021〕37号);广东省重点实验室运行费(2020B1212060047)

Abstract

Abstract:

Meixiangzhan 2 is a high-quality Simiao rice variety with the largest planting area in Guangdong Province. It has the characteristics of high quality, strong regeneration ability and wide adaptability. This paper summarized the planting performance of Meixiangzhan 2 as machine-harvested low stubble ratooning rice in northern Guangdong from 2018 to 2021. In ratooning season, Meixiangzhan 2 had a growth period of 84~89 days, and the effective accumulated temperature from harvest of the early season to the heading stage of the ratooning season was 893 ℃~1 092 ℃. The grain yield of ratoon rice was 293.5~343.0 kg/667 m², amounting to 69.1%~74.6% of that of early season. In 2021, the total cost investment and economic benefit of early rice-ratooning rice mode was 1 974.5 yuan/667 m² and 824.3 yuan/667 m², respectively. Compared with the single-season rice, the yield of ratooning rice mode increased 328.0 kg/667 m², and the economic benefit increased 740.3 yuan/667 m², respectively. Compared with the double cropping rice, early rice-ratooning rice mode decreased the total grain yield by 57.0 kg/667 m², but saved the total cost investment by 582.5 yuan/667 m², and increased the economic benefit by 377.3 yuan/667 m². This paper also summarized the key cultivation techniques of Meixiangzhan 2 as machine-harvested low stubble ratooning rice, in order to provide reference for high-yield cultivation of mechanically harvested ratooning rice in South China.

Key words: Meixiangzhan 2, ratooning rice, grain yield, benefit, cultivation techniques

摘要：

美香占2号是目前广东省种植面积最大的高端丝苗米品种，具有米质优、再生能力强、适应性广的特点。本文总结了该品种2018—2021年在粤北作低桩机收再生稻的种植表现。美香占2号再生季生育期84~89 d，早季收割至再生季齐穗期有效积温893 ℃~1 092 ℃，再生季产量为293.5~343.0 kg/667 m²，为早季产量的69.1%~74.6%。2021年，“早稻-再生稻”模式下两季总成本投入1 974.5元/667 m²，经济效益为824.3元/667 m²。与一季稻相比，再生稻模式增产328.0 kg/667 m²，经济效益增加740.3元/667 m²；与双季稻相比，再生稻模式两季总产降低57.0 kg/667 m²，节省成本582.5元/667 m²，经济效益增加377.3元/667 m²。本文还总结了美香占2号作低桩机收再生稻的关键栽培技术，以期为华南地区机收再生稻高产栽培提供参考。

关键词: 美香占2号, 再生稻, 产量, 效益, 栽培技术

CLC Number:

S511.048

HU Xiangyu, HUANG Zhenbiao, ZHONG Xuhua, LIANG Kaiming, PAN Junfeng, LIU Yanzhuo, FU Youqiang, HU Rui, LI Meijuan, YE Qunhuan. Performance and Cultivation Techniques of Meixiangzhan 2 as Machine-harvested Low Stubble Ratooning Rice in Northern Guangdong[J]. China Rice, 2023, 29(6): 107-109.

胡香玉, 黄振标, 钟旭华, 梁开明, 潘俊峰, 刘彦卓, 傅友强, 胡锐, 李妹娟, 叶群欢. 美香占2号在粤北作低桩机收再生稻的表现及关键栽培技术[J]. 中国稻米, 2023, 29(6): 107-109.

Figures/Tables 4

References 10

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Performance and Cultivation Techniques of Meixiangzhan 2 as Machine-harvested Low Stubble Ratooning Rice in Northern Guangdong

美香占2号在粤北作低桩机收再生稻的表现及关键栽培技术

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