A method for screening high-efficiency varieties of double-cropping super rice with water and fertilizer synergy

A rice water fertilizer and variety technology, which is applied in the field of screening double-cropping super rice water and fertilizer synergistic high-efficiency varieties, can solve the problems of large nitrogen application, inconsistent standards, and increased production costs, and achieves the advantages of convenient operation, broad application prospects, and low cost. Effect

Active Publication Date: 2022-04-08
HUNAN HYBRID RICE RES CENT
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Problems solved by technology

However, the traditional cultivation of super rice has a large amount of irrigation and nitrogen application, which leads to low utilization efficiency of water and fertilizer resources and increases production costs, and most of the current research is on the screening of single high-efficiency varieties such as high water efficiency or high fertilizer efficiency. Research is rarely reported, and there are still problems such as inconsistent standards and unscientific screening in the screening of nitrogen-efficient varieties

Method used

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  • A method for screening high-efficiency varieties of double-cropping super rice with water and fertilizer synergy
  • A method for screening high-efficiency varieties of double-cropping super rice with water and fertilizer synergy
  • A method for screening high-efficiency varieties of double-cropping super rice with water and fertilizer synergy

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Embodiment 1

[0036] In 2018, in Lukou Town, Changsha County, and Meihua Village, Hengyang County, screening experiments were conducted on double-cropping super rice varieties with synergistic water and fertilizer efficiency. The selected varieties were super early rice: Zhuliangyou 819, Lingliangyou 268, Luliangyou 996, Liangyou You 287, Jinyou 463, Zhongzao 39, Zhongjiazao 17, Ganxin 203, Wufengyou 286, Jinyou 458, Zhongzao 35, Zhuliangyou 30, etc. 12.

[0037] Super late rice: Wufengyou T025, Shenyou 1029, Tianyou Huazhan, Ganxin 688, Shengtaiyou 722, Fengyuanyou 299, Hyou 518, Tianyou 998, Tianyou 122, Wuyou 308, Rongyou 225, Jiyou 225 and other 12.

[0038] The experimental split-plot design, the main plot is the amount of nitrogen fertilizer, the split plot is the irrigation method, a total of 6 treatments, randomized block design. All varieties were screened in the same main split plot to achieve the screening conditions for the same treatment. Repeat 3 times, each treatment has an...

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Abstract

The invention discloses a method for screening high-efficiency varieties of double-cropping super rice with water and fertilizer synergy, which includes screening seeds, treating nitrogen application rate as the main area, and split-plot irrigation method for split-plot test, calculating average yield, data processing, and variety screening And other steps can quickly, conveniently, efficiently, and low-cost screen out varieties with high water-fertilizer synergy in double-cropping super rice, which solves the problems of single screening elements and unscientific screening in existing screening research.

Description

technical field [0001] The invention belongs to the technical field of rice variety screening, in particular to a method for screening double-cropping super rice varieties with synergistic water and fertilizer efficiency. Background technique [0002] Rice is an important food crop in my country, and increasing rice production is of great strategic significance to ensure food security. In order to increase the yield of rice, my country officially launched the super rice breeding research program in 1996. So far, a number of super rice varieties have been cultivated for more than 20 years, and a series of major breakthroughs have been made in yield. However, the traditional cultivation of super rice has a large amount of irrigation and nitrogen application, which leads to low utilization efficiency of water and fertilizer resources and increases production costs, and most of the current research is on the screening of single high-efficiency varieties such as high water effici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/04
CPCA01H1/04
Inventor 魏中伟金文雨
Owner HUNAN HYBRID RICE RES CENT
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