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Shihezi University (石河子大学) 2021

Study on Efficient Management Technology of Water and Fertilizer Integration of Jujube in Sandy Soil of Kunyu City

刘赛男

Titre : Study on Efficient Management Technology of Water and Fertilizer Integration of Jujube in Sandy Soil of Kunyu City

Auteur : 刘赛男

Grade : Master 2021

Université : Shihezi University (石河子大学)

Résumé partiel
Xinjiang has the largest planting area of jujube in China,with an annual output of more than 3.7million tons,accounting for more than 51%.Jujube is one of the pillar industries for increasing farmers’income in southern Xinjiang.During the production,the fruit growers applied a large amount of chemical fertilizer based on their experience,which led to the rise of production cost of jujube and the aggravation of environmental pollution.At the same time,it led to the imbalance of nutrient proportion of jujube trees and the instability of yield and quality,which significantly affected the stability of income of jujube growers.In this study,Jun jujube was used as experimental materials in 224 regiment of Kunyu City,Hetian city from2019 to 2020.Through tracking and detecting the nutrient dynamics of high-yield and high-quality jujube orchards managed by experienced jujube growers,the nutritional characteristics of jujube trees based on jujube head nutrition detection under the conditions of healthy growth,high yield and high quality were explored ;By using DRIS(diagnosis and Recommendation Integrated System)combined with probability classification method,the effects of different fertilization and nutrition management schemes on jujube yield and quality were studied,and the jujube nutrition diagnosis system based on rapid measurement technology of jujube head nutrient elements was established,and the optimized fertilization schemes were screened,so as to provide basis for scientific fertilization and efficient production of jujube.The main results are as followsDescription of soil fertility of jujube orchard.Before the construction of jujube orchard,the basic soil was typical arid desert wind-sand soil.After nine years of cultivation,the 0-15cm surface layer of the soil has a certain fertility foundation,but the content of available nutrients phosphorus and potassium is still very low below 15cm layer.The average values in 0-15cm surface layer soil profile are 8.2 of p H,2.2ms/cm of electrical conductivity,1.8g/kg organic matter,24.5mg/kg,of alkali-hydrolyzable nitrogen,15mg/kg of available phosphorus(P2O5),118mg/kg of available potassium(K2O).And the value of trace elements such as copper,zinc and iron is very low or not detected

Mots clés : Jujube cultivated in aeolian sandy soil ;Nutrition diagnosis ;Jujube head detection ;Yield;Quality ;

Présentation (CNKI)

Page publiée le 20 février 2022