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

Black earth fertility evaluation index system

An evaluation index system and soil fertility technology, applied in the field of agricultural production, can solve problems such as difficulties in soil fertility, and achieve remarkable results

Inactive Publication Date: 2007-02-28
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the various ways of using soil resources, it is quite difficult to use a specific index to evaluate soil fertility

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The invention was applied in the major knowledge innovation project (KZCX1-SW-19-3-01) of the Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences from 2003 to 2005. Soil fertilization and scientific fertilization have important guiding significance, and have very important theoretical and practical significance for the agricultural production of the entire black soil area; at the same time, the government departments have certain practical significance for the macro-control and decision-making of the fertility characteristics of farmland black soil.

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 relates to a method for using classical statistic to research fertility evaluation index of black soil area of HeiLongJiang province, and relative evaluation method, wherein it can research and screen relative indexes of the fertility of black soil; it uses SAS software program data to analyze collected black soil sample; then based on the main element analyzed data, calculating out the black soil fertility character valve F; based on the volumes of F, it can be divided into 5 levels, to evaluate the fertility of black soil area reasonably.

Description

technical field [0001] The invention belongs to the technical field of agricultural production and relates to a black soil fertility evaluation index system. technical background [0002] Northeast black soil is one of the three major black soils in the world. It is mainly distributed in Heilongjiang and Jilin provinces, covering an area of ​​about 10 million hectares. It is the main commercial grain and animal product base in my country. In the total area of ​​cultivated land in Heilongjiang Province, black soil accounts for about 43%, which is relatively fertile soil. This is just a qualitative statement, lacking the support of scientific evaluation indicators. Due to the various ways of using soil resources, it is quite difficult to use a specific index to evaluate soil fertility. Larson and Pierce (1991) proposed indicators for controlling soil erosion or preventing surface water and groundwater pollution: soil texture, structure and strength, plant available water and...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
Inventor 隋跃宇张兴义焦晓光
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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