Effects of Different Fertilization Treatments on Soil Nutrient in the Orchardand Fruit Aroma Component of Prunus persica'apple'Peach

Objective The study was carried out to find out suitable fertilization scheme for the planting of Prunus persica'apple'Peach in eastern Guizhou.

Method Using the P. persica'apple'peach orchards as research objects, the effects of different fertilization including compound fertilizer, commercial organic fertilizer and colleseed oil press cake fertilizer on soil nutrients and fruit aroma components were researched.

Result In comparison with different fertilizer treatments, applying organic fertilizers could improve the organic matter content, available P and available K in soil, and the organic matter content was increased by 22.80% (the highest increase) under the treatment of colleseed oil press cake fertilizer; the contents of available P and available K were the highest under commercial organic fertilizer treatment, which increased by 71.21% and 67.66%, respectively. Compared with compound fertilizer treatment, there was no significant difference in soluble solid content, total acid, single fruit weight, longitudinal diameter and transverse diameter of P. persica'apple'Peach fruits under the organic fertilizer treatment, while the total sugar content and hardness of fruits under the colleseed oil press cake fertilizer treatment were increased by17.26% and 17.16%, respectively. Compared with compound fertilizer treatment, the application of organic fertilizer could increase the total aroma component content of fruits significantly, under colleseed oil press cake fertilizer and commercial organic fertilizer treatments, contents of total aroma component were increased by 44.07% and 22.82%, respectively.

Conclusion The application of organic fertilizers can improve soil nutrient effectiveness and aroma component of P. persica'apple'Peach significantly, and the effect of colleseed oil press cake fertilizer is better.