The soil hardening method of greenhouse orchard mainly includes the following steps:
1. Land consolidation. It takes a certain amount of time, manpower and material resources to lay the land in the greenhouse, so it is necessary to make full preparations for the land before laying it. First of all, clean up the land, remove all garbage, weeds and roots, and ensure the surface is flat. Secondly, the soil should be disinfected, and a certain amount of farm manure and herbicides should be used to inhibit the growth of germs and weeds.
2. spread plastic film. Plastic film is the main tool for soil hardening in greenhouse orchard, which can prevent soil loss and maintain soil water content to a certain extent. The material of mulching film can be polyethylene or polypropylene, and different thicknesses and colors can be selected according to actual needs. First of all, we should cut the plastic film into a suitable size according to the greenhouse area, and spread the plastic film on the ground with a big machine.
3. Fix the plastic film. There are also many ways to fix plastic film, such as using iron wire, bamboo pole, plastic clip and so on. When choosing a fixed method, we need to consider the stability, ease of use and cost of the fixed method. Generally speaking, black mulch film can be fixed with plastic clips, and transparent mulch film needs to be fixed with hard materials such as iron wire or bamboo pole.
4. Excavate the drainage trough. In order to better discharge rainwater and irrigation water, it is necessary to dig a drainage trough at the edge or center of the greenhouse. Select the depth and width of the drainage trough according to the size of the greenhouse area and the size of the water flow. The drainage tank should be inclined to discharge, so as to collect water smoothly and prevent blockage and water accumulation.
The compaction method of greenhouse orchard land needs to be selected according to the specific situation. Generally speaking, it is necessary to ensure that the land is flat and clean, spread appropriate plastic films, and set up drainage grooves at the same time to better control the land environment and ensure the growth and yield of fruit trees.