Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for one-time fertilizer application for rice

A fertilization method and rice technology, which are applied in the directions of fertilization method, fertilization device, application, etc., can solve the problems of inability to meet the nutritional needs of rice and increase the cost of artificial fertilization.

Pending Publication Date: 2017-06-27
CHINA NAT RICE RES INST
View PDF14 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above published patents can only realize single-level deep fertilization of rice, and cannot meet the nutritional needs of rice in different periods, especially in the early stage of rice growth, artificial topdressing is required, which increases the cost of artificial fertilization

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
  • Method for one-time fertilizer application for rice
  • Method for one-time fertilizer application for rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The first method to realize the one-time fertilization of rice is double-ditch fertilization, and the double-ditch fertilization device is installed in the existing rice transplanter and direct seeding machine. Ditching fertilization device such as figure 1 As shown, it is mainly composed of a set of fertilizer tanks 1 containing slow-release fertilizers and quick-acting fertilizer tanks 7, fertilizer wheels 2, fertilizer tubes 3, and ditching devices. The ditching device consists of a set of "V"-shaped ditch openers 4 and 5 for deep and shallow ditching. The depth of the deep groove is 15cm, the upper mouth is 15cm wide, and the upper mouth of the shallow groove opener is 5cm wide. , The lower mouth is 3cm wide and 3cm deep. Shuanggou fertilization can realize the application of slow-release fertilizer and quick-acting fertilizer separately, and the application ratio is recorded as 3-5:1 according to the amount of nitrogen. The NPK ratio of the slow and controlled rele...

Embodiment 2

[0030] The second method realizes that the one-time fertilization of rice is inclined plane fertilization, and the existing rice transplanter and direct seeding machine are equipped with an inclined plane ditch fertilization device. Fertilization components such as figure 2 , It is mainly composed of fertilizer tank 8, fertilizer wheel 2, fertilizer tube 3 and inclined surface trench device for containing slow and controlled release fertilizer and quick-acting fertilizer. The section of the inclined face opener 9 for sloping ditching is a right-angled triangle, the bottom angle of the opener is 25 degrees, and the right-angle side is 15cm deep, so that a 65-degree slope can be opened, and fertilizer is applied on the slope. After the soil is covered, the fertilizer is distributed along the slope. The burial depth of the fertilizer close to the rice seedlings is shallow, and the burial depth of the fertilizer far away from the rice seedlings is deep, so as to ensure the nutriti...

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

PropertyMeasurementUnit
Catchy wideaaaaaaaaaa
Depthaaaaaaaaaa
Catchy wideaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for one-time fertilizer application for rice. The method comprises two fertilizer application modes. According to the first fertilizer application mode, one deep V-shaped ditch and one shallow V-shaped ditch are formed between two adjacent rows of rice, a slow / control release fertilizer is applied in the deep ditch, and a quick-acting fertilizer is applied in the shallow ditch; and the fertilizer application ratio of the slow / control release fertilizer to the quick-acting fertilizer is (3-5):1 by nitrogen amount. According to the second fertilizer application mode, a bevel ditch is opened between the two rows of adjacent rice, and then the slow / control release fertilizer and the quick-acting fertilizer with a weight ratio of (3-5):1 by nitrogen amount are applied in the bevel ditch, and the controlled-release time of the slow / control release fertilizer is 40 d, 60 d and 90 d. Shallow application of the quick-acting fertilizer and deep application of the controlled release compound fertilizer are combined, nutritional requirements in whole growth period of rice are met, one-time fertilizer application is performed, and topdressing is not needed; and one-time fertilizer application is implemented through deep ditch and shallow ditch combination and the bevel fertilizer application method. According to mechanical transplanting and mechanical direct seeding seedling growth features, the shallow layer fertilizer ensures nutrient supply at an earlier growing stage, and the deep layer fertilizer ensures nutrient supply at a medium and later growing stage.

Description

Technical field [0001] The invention relates to the technical field of agricultural production, in particular to a one-time fertilization method for rice. Background technique [0002] One of the important ways to increase rice production is to increase nitrogen fertilizer. In the past 50 years, the world's food production has risen sharply, partly because of the increase in fertilizer input, especially nitrogen fertilizer. At present, the average single-season nitrogen fertilizer consumption in my country's rice fields is 180kg / hm 2 , 75% higher than the world's unit area consumption. As nitrogen fertilizer is mainly applied by artificial surface application method, one-time fertilization can easily cause excessive nitrogen concentration in the field, causing problems such as burning seedlings, severe fertilizer loss, and lack of fertilizer in the late stage of rice growth. Therefore, the split fertilization method is generally used at present, which is not only time-consuming ...

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): A01C21/00
CPCA01C21/00
Inventor 向镜朱德峰
Owner CHINA NAT RICE RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com