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- W2358197907 abstract "【Objective】The objective of the experiment is to find out the problems in soil nutrients of apple orchard and obtain a theoretical basis for targeting reasonable balanced fertilization and increasing utilization ratio of fertilizer nutrient,and the available nutrients content in soil on fruit qualities and optimum quantity of nutrient elements for good fruit qualities were studied.【Method】The investigations were carried out on soil nutrient and fruit qualities,and methods of Canonical Correlation Analysis and linear program were used to screen major soil nutrient elements affecting fruit qualities for solving optimum proposals of nutrient elements for good apple qualities,and pointing out the existing problems in soil nutrients in surveyed apple orchards.【Result】Soil organic matter,available P,K,fruit firmness and soluble solids content of fruits in apple orchards of Changping district were higher than other apple production areas.The soil organic matter was positive correlated with total N,available P,K and microelement,and the correlation coefficient was 0.8261 between alkaline-N and available Zn.The canonical correlation was used to obtain major soil nutrient element factors affecting fruit mass,fruit firmness,soluble solids and titratable acidity content,respectively.The optimum proposals for soil nutrient elements content of good apple quality was obtained by linear program resolution were 10.0-40.0 g·kg-1 of organic matter,0.50 g·kg-1 of total N,and 400 mg·kg-1,230.88-400.0 mg·kg-1,583.83-600.0 mg·kg-1,1.00-5.00 mg·kg-1,5.00-60.00 mg·kg-1,0.80-20.0 mg·kg-1,0.5 mg·kg-1 of alkaline-N,available P,K,Ca,Fe,Zn,and B,respectively.Under this optimum proposals for soil,the target of fruit qualities of 350.66 g mass,12.16 kg·cm-2 firmness,23.19% soluble solids,0.377% titratable acid will be achieved theoretically.The results indicate that soil alkaline N content of 85.29% orchords are under 200 mg·kg-1,more than 50% soil samples are deficient in available P,and 91.18%,of the orchards are deficient in elements Fe and Zn,respectively,in investigation orchard.【Conclusion】It is a key point to improve alkaline-N,available P,K and Fe,Zn content in soil in apple orchards in Beijing Changping." @default.
- W2358197907 created "2016-06-24" @default.
- W2358197907 creator A5090270861 @default.
- W2358197907 date "2011-01-01" @default.
- W2358197907 modified "2023-09-25" @default.
- W2358197907 title "Multivariate Analysis and Optimum Proposals of the Relationship Between Soil Nutrients and Fruit Qualities in Apple Orchard" @default.
- W2358197907 hasPublicationYear "2011" @default.
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