| In this passage,from the perspective of the combined application of organic and inorganic fertilizers,the apple orchard in Pinglu County,Yuncheng City,Shanxi Province was selected as the research pilot.The physical and chemical properties of the apple orchard and the fruit quality and yield were the main research objects.Different effects of fertilizer + formula fertilizer,fruit-biogas-animal(pig)+ formula fertilizer and single application of livestock manure and poultry manure sludge with or without fertilization and conventional fertilization on apple quality,yield,and physical and chemical properties of soil in the park.The apple production in Pinglu County,Yuncheng City provides theoretical basis and experimental guidance.After research,the results are as follows:(1)The apple quality is different under different fertilization treatment conditions.Comparing the fruit quality under different fertilization treatments and conventional fertilization treatment conditions,it can be seen that under the conditions of livestock and poultry manure rotten mature fertilizer + formula fertilizer,the fruit hardness,Fruit type index,sugar-acid ratio,and Vc content have been significantly improved compared with conventional fertilization treatments,which indicates that under this treatment condition,the fruit quality of apples has been significantly improved.Under the conditions of fertilization treatment,there are some differences in fruit quality indicators compared with conventional fertilization treatment,but the differences are not significant.However,under the treatment of fruit-marsh-animal(pig)+ formula fertilizer,fruit hardness and Compared with the conventional fertilization treatment conditions,the indexes such as type index have no obvious change,the sugar content of the fruit is reduced,and the acidity is increased.The taste of the fruit in this mode is acidic.(2)The effects of different fertilization treatments on fruit yield were different.Under the conditions of livestock manure and poultry manure compost + formula fertilizer,the number of fruit per plant and plot yield of apples increased significantly compared with conventional fertilization treatment.Single manure application of manure poultry manure sludge manure and fruit-marsh-livestock(pig)+ There was no significant difference between the number of fruit per plant and plot yield under the condition of formula fertilizer treatment,but it also promoted a small increase in fruit yield.Comparing the three fertilization modes,conventional livestock and poultry manure sludge rot fertilizer + formula fertilizer application treatment,apple The yield of plots and the number of results per plant were significantly higher than the other two fertilization modes,which had a more significant impact on apple yield.The other two fertilization methods had no significant impact on apple yield.Therefore,in order to increase apple yield,rotten livestock and poultry manure The fertilizing method and ratio of sewage rotten fertilizer + formula fertilizer may be the ideal fertilizing method.(3)It is found through research that different fertilization treatment conditions will have different effects on soil physical and chemical characteristics.In the 0-20 cm soil layer,the contents of soil organic matter and available nitrogen,phosphorus,and potassium in different fertilization modes were higher than those in conventional fertilization treatment and blank non-fertilization treatment.Among them,T2 treatment of livestock and poultry manure sludge rotten fertilizer + formula fertilizer Under the model,the soil organic matter and nitrogen,phosphorus,and potassium quick-acting indexes were higher than those of T1 treatment with single application of livestock manure and poultry manure sludge and mature fertilizer,and T3 treatment with fruit-marsh-animal(pig)+ formula fertilizer.Compared with conventional fertilization treatments,the soil p H showed a significant downward trend,and as the depth of the soil layer increased,the soil p H value of the three fertilization treatments gradually increased. |