Sand-covering and soil moisture preservation cultivation method for dry land apple trees

Abstract

The invention discloses a sand-covering and soil moisture preservation cultivation method for dry land apple trees. The sand-covering and soil moisture preservation cultivation method for dry land apple trees comprises the steps of (1) orchard location selection, (2) fertilizer application, (3) sand laying, (4) water irrigation, (5) other management and (6) sand replacement. The sand-covering and soil moisture preservation cultivation method for dry land apple trees is characterized in that according to sand laying in step (3), enough base fertilizer is applied before sand laying, soil is ploughed as deep as 18-25 cm, soil lumps are crushed, flattened and raked, and a sunscreen net fully covers the soil surface and is tightly attached to the soil surface; after the base fertilizer is cured, processed river sand which is small in soil content and uniform in size is laid and pressed on a black wire net, the thickness of the sand laid within the range of 1.5-2 m of the diameter of each tree trunk is 3-5 cm, and the thickness of the sand laid in the other area is 1.5-2 cm. The sand-covering and soil moisture preservation cultivation method for dry land apple trees improves soil moisture preservation and heat preservation effects through a secondary covering structure, and is better in soil moisture preservation and heat preservation effect compared with an existing sand covering and soil moisture preservation method. Due to the two layers of covering, the probability of freezing injury to the root systems of fruit trees in the overwintering process is reduced, and good economical and social benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of fruit tree cultivation, and in particular relates to a method for cultivating apple orchards in dry land covered with sand to preserve moisture. Background technique [0002] In recent years, with the in-depth promotion of the policy of returning farmland to forests, the planting area of ​​apple trees in Gansu Province has continued to expand. Jingning County is located in the east of Gansu Province, west of Liupan Mountain, east of Huajialing, 105°20'-106°05' east longitude, Latitude 35°01'~35°45'. For apple planting, the area has a good ecological environment, light resources and sufficient land resources, but the lack of precipitation is the main factor restricting apple planting in this area, especially the uneven annual distribution of precipitation, low precipitation, and evaporation. large, seriously affecting the development of the apple industry. For this reason, the vigorous development of wat...

AI Technical Summary

Problems solved by technology

However, the "orchard covering sand and grass technology" has the potential danger of polluting the soil and damaging the soil quality

[0003] At present, the "orchard covering with sand and grass technology" is a commonly used method to preserve moisture and suppress the occurrence of pests. However, because the orchard is covered with sand, and the thickness of each sand covering is at least 1cm, it will cause serious soil desertification and soil fertility in the long run. phenomenon, there is also the problem of high cost

Although the orchard mulching technique avoids the negative effects of sand mulching, single mulching cannot achieve a good moisture conservation effect, and when fertilizing tree trays after mulching, the grass needs to be removed before fertilization can be carried out. Increased labor costs and prolonged fertilization time

High ridge film mulching technology can achieve the effect of water retention, fertilizer retention and weed suppression, but the film is easily damaged and torn, and has high requirements on the ridge surface