HUBEI AGRICULTURAL SCIENCES ›› 2021, Vol. 60 ›› Issue (22): 31-33.doi: 10.14088/j.cnki.issn0439-8114.2021.22.006

• Breeding & Cultivation • Previous Articles     Next Articles

Screening for rice varieties and seeding quantity in driect-seeded,double-season rice system

ZHANG Qun1, XIA Xian-ge2, CHEN Zhan-peng1, CHEN Jie1, CAO Zhi-gang1, JIN Hong-mei1, ZHANG Wen-chao1, TU Jun-ming3, CHEN Jian-ping2, ZHANG Zhi-sheng2, HU Feng4   

  1. 1. Huanggang Academy of Agricultural Science,Huanggang 438000,Hubei,China;
    2. Hubei Academy of Agricultural Sciences,Wuhan 430064,China;
    3. Huanggang Agriculture and Rural Bureau,Huanggang 438000,Hubei,China;
    4. Wuxue Agricultural Technology Extension Center,Huanggang 436400,Hubei,China
  • Received:2021-04-09 Online:2021-11-25 Published:2021-12-10

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Abstract: Using conventional early rice varieties Gangzaoxian 11, Gangzaoxian 13 and Xinliangyou 9011 bred by Huanggang Academy of Agricultural Sciences as research objects, the screening for rice varieties in driect-seeded, double-season rice system was conducted. The results showed that, Gangzaoxian 11 has a suitable growth period, high production safety, suitable plant height, high yield, and high fertilizer utilization. It is suitable for rice varieties in driect-seeded,double-season rice system. This experiment carried out a different seeding rate experiment on Gangzaoxian 11. The results showed that, the early rice season of Gangzaoxian 11 at 150 kg/hm2 seeding rate+ late rice season at 180 kg/hm2 seeding rate, the two seasons have the highest economic benefits.

Key words: rice, driect-seeded, double-season, variety, seeding quantity

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