Fertilizing method capable of reducing influence of chilling damage on rice at booting stage

A fertilization method and low temperature technology, which are applied in fertilization methods, fertilization devices, nitrogen fertilizers, etc., can solve the problems of lack of potassium fertilizer, nitrogen fertilizer and phosphorus fertilizer application methods, etc., and achieve the effect of reducing low temperature and chilling damage in the booting stage

Active Publication Date: 2019-03-29
NORTHEAST AGRICULTURAL UNIVERSITY
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the prior art lacks the application method of potassium fertilizer, nitrogen fertilizer and phosphorus fertilizer about alleviating the impact of low temperature and chilling damag...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fertilizing method capable of reducing influence of chilling damage on rice at booting stage
  • Fertilizing method capable of reducing influence of chilling damage on rice at booting stage
  • Fertilizing method capable of reducing influence of chilling damage on rice at booting stage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Test materials

[0016] Cold tolerance japonica rice varieties Dongnong 428 and Songjing 10 with similar growth periods but different cold tolerance. Among them: Dongnong 428 was approved in Heilongjiang in 2009, serial number: Heijiandao 2009007, parent source: Wuyoudao No. 1 (♀) Dongnong 423 (♂), breeding unit: Northeast Agricultural University variety type; Songjing 10 is Approved by Heilongjiang in 2005, No.: Heijiandao 2005005, parent source: Liaojing 5 (♀) Hejiang 20 (♂), breeding unit: The Second Rice Research Institute of Heilongjiang Academy of Agricultural Sciences, variety type: Japonica conventional Rice variety source: Liaojing 5 as the female parent and Hejiang 20 as the male parent were crossed and bred by pedigree method.

[0017] (2) Experimental design

[0018] 1. Screening of optimal potassium fertilizer dosage under cold water stress at booting stage of japonica rice in cold regions

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a fertilizing method capable of reducing influence of chilling damage on rice at a booting stage and belongs to the technical field of rice cultivation. According to the fertilizing method, phosphorus fertilizer as base fertilizer is applied to the field once, nitrogen fertilizer is applied to the field by stages in an application mass ratio of the base fertilizer, tillering fertilizer and earing fertilizer being 6:3:1, and potassium fertilizer is applied to the field by stages in an application mass ratio of the base fertilizer to the earing fertilizer being 7:3; potassium oxide content converted from total application amount of the potassium fertilizer is 100 kg/ha; N content converted from total application amount of the nitrogen fertilizer is 150 kg/ha; P2O5 content converted from total application amount of the phosphorus fertilizer is 55 kg/ha. The method can reduce the influence of chilling damage on the rice at the booting stage, has great significance in guarantee of stable yield of the rice and is applicable to prevention of the influence of chilling damage on the rice at the booting stage.

Description

technical field [0001] The invention relates to a fertilization method for alleviating the impact of low-temperature chilling damage on rice at the booting stage, and belongs to the technical field of rice cultivation. Background technique [0002] Rice is an important food crop in my country. In 2014, the rice planting area in my country reached 30.8711 million hm 2 , the output reached 208.2396 million tons. According to statistics, the country loses 5 million to 10 million tons of rice every year due to low temperature and chilling damage. In the three northeastern provinces, on average, large low-temperature chilling damage occurs every 3 to 5 years, while small low-temperature chilling damage occurs every year. Low-temperature chilling damage has become one of the main factors affecting high and stable rice yields. Low temperature and chilling damage in the booting stage of rice has the greatest impact on yield, and in severe cases it will cause a substantial reductio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A01C21/00C05G1/00
CPCA01C21/005C05B7/00C05C9/00C05D1/02
Inventor 贾琰赵宏伟王晋瞿炤珺
Owner NORTHEAST AGRICULTURAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap