Special fertilizer for walnut and application method thereof

Abstract

The invention relates to a special fertilizer for walnut cultivation. The special fertilizer is developed according to the nutrient status of soil in a walnut orchard under oasis irrigation conditions and the characteristics of fertilizer needs of walnut; and the effective components of the special fertilizer comprise an inorganic fertilizer containing elemental nitrogen, elemental phosphorus and elemental potassium and an organic fertilizer composed of cottonseed oil residue. According to the invention, the organic fertilizer and the inorganic fertilizer are integrated into one; and when applied to the walnut orchard, the special fertilizer can fully satisfy demands of the walnut for a plurality of nutrient elements, activate plant growth genes, promote normal growth and development of the walnut, effectively improve physical and chemical properties of the soil, eliminate soil hardening and enhance stress resistance of the walnut, thereby improving the utilization rate of the fertilizer, increasing a fruit-setting ratio, improving fruit quality and facilitating production of pollution-free green fruit.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a special fertilizer for walnuts and a fertilization method thereof. Background technique [0002] Walnut is a kind of perennial deciduous fruit tree, which has a long history of cultivation in China. Its economic value is very high. It is not only edible, but also has high medical value. As one of the main fruit tree species for the development of Xinjiang's characteristic forest and fruit industry, walnut has a planting area of ​​28.7×10 4 hm 2 . However, there is still a large gap between its output per unit area and benefits compared with domestic and foreign. For example, the yield per unit area of ​​walnuts in the full fruit stage in California, USA can reach 5250-6750 kg / hm 2 , while the yield per unit area of ​​walnuts in the full fruit stage in the South Xinjiang Basin is generally less than 2250 kg / hm 2 . One of the main reasons is that the walnut production orchards in...

AI Technical Summary

Problems solved by technology

One of the main reasons is that the walnut production orchards in the southern Xinjiang Basin generally have the problem of extensive soil nutrient management and lack of scientific fertilization guidance, resulting in small walnut fruits, poor quality, unstable yields, and economic benefits in most walnut production orchards during the full fruit period. Low