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Seedling raising method for rapidly improving cold resistance of mechanized transplanted seedlings

A technology for cold resistance and seedlings is applied in the field of raising seedlings to rapidly improve the cold resistance of mechanized transplanting seedlings. 、Convenient effect of foliar spraying method

Pending Publication Date: 2021-03-16
HUNAN AGRICULTURAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when soaking seeds with cellulose oligosaccharides, the seeds must be treated before sowing, otherwise it will affect the subsequent series of seedling raising procedures, which is inconvenient to use

Method used

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  • Seedling raising method for rapidly improving cold resistance of mechanized transplanted seedlings
  • Seedling raising method for rapidly improving cold resistance of mechanized transplanted seedlings
  • Seedling raising method for rapidly improving cold resistance of mechanized transplanted seedlings

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Embodiment Construction

[0025] field test

[0026] The early rice variety Zhongzao 39 tested was carried out in the practice base of Hunan Agricultural University in Liuyang City, Hunan Province in 2020. Adopt random block design, establish clear water (contrast 1), cellooligosaccharide (contrast 2), xylo-oligosaccharide foliage spraying (experimental group of the present invention) 3 processes, every process is set 3 repetitions, each repeats sowing 2 plates, 18 plates in total.

[0027] Clear water and fiber oligosaccharides are soaked by seed soaking method (clean water seed soaking time 40h, 80mg / kg mass concentration cellooligosaccharide soaking 12h), xylo-oligosaccharides are sprayed on the leaves of one leaf and one heart stage (mass concentration is 85mg / kg, spraying The volume is 90-150L / hm 2 ). For all treatments, seedlings were taken at the two-leaf-one-heart stage, and three trays of seedlings were randomly selected for each treatment, and a square of 10cm×10cm in size was selected for...

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Abstract

The invention relates to a seedling raising method for quickly improving the cold resistance of mechanized transplanting seedlings. Based on an existing seedling raising technology, a xylooligosaccharide solution with the mass concentration of 60-120 mg / kg is sprayed on leaf surfaces of the seedlings between a one-leaf one-core period and a two-leaf one-core period of the seedlings after sowing inthe seedling management period, wherein the spraying amount is 90-150 L / hm<2>. Compared with a seed soaking method, the method is more convenient to use, and the influence of cold damage on the seedlings can be relieved only by spraying on the leaf surfaces in the rice seedling stage; in the aspect of rice machine transplanting, the xylooligosaccharide foliage spraying method can significantly improve the germination rate and the seedling rate of the seedlings, the growth of overground parts of the seedlings is effectively promoted, the width of stem bases of the seedlings is significantly increased, and the requirements of mechanized rice transplanting for the seedlings are better met; in the aspect of cold resistance, xylooligosaccharide leaf surface spraying can significantly improve the stress-resistant enzyme activity of the seedlings, and the cold resistance is significantly enhanced; and in the aspect of the using convenience degree, compared with the seed soaking method, the method is more convenient to use, and the cold-resistant effect can be achieved by spraying before cold waves come.

Description

technical field [0001] The invention relates to rice seedling raising technology in the field of agricultural technology, in particular to a seedling raising method for rapidly improving the cold resistance of mechanized transplanted seedlings. Background technique [0002] China is a large agricultural country, and mechanized production is being used more and more widely in the agricultural field, and machine transplanting has become one of the main methods of rice transplanting. However, the current seedling raising technology has poor quality of seedlings, short suitable planting period, and poor cold resistance. It is difficult to cultivate seedlings with strong cold resistance and suitable for machine-transplanted standards. Large-scale and mechanized production of early rice. [0003] Oligosaccharides are a new type of functional sugar source, which are widely used in food, health products, beverages, medicine, feed additives and other fields, and their application in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/22A01G7/06
CPCA01G22/22A01G7/06
Inventor 龙攀唐志伟傅志强吕国华徐华勤徐莹周梦瑶
Owner HUNAN AGRICULTURAL UNIV
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