Laminating method for seedling raising in dry land

Abstract

The invention relates to a method for covering film for cultivating seedlings on a dry land, belonging to the technical field of agricultural planting, which is characterized in that a tiling film (2) is covered on a box surface after fertilizing, watering, seeding and covering earth on a dry land seedbed; the thickness of the tiling film can be smaller or equal to 0.008mm and the periphery of the tiling film is compacted by clod; arc strips (3) with a length of 200cm to 220cm are inserted into the soil beside the box at both sides of the box and the depth for soil insertion is 10cm to 15cm to lead the arc strip to be in a natural arc shape. The distance between the arc strips is 60cm to 80cm to form an arc frame. An arc frame film (1) is covered on the arc frame and the thickness of the arc frame film is larger than or equal to 0.014mm, both ends of the seedling box are respectively covered by one more bamboo strip to lead the plastic films at both ends to be positioned between two layers of the bamboo strips. After covering the film, the periphery is compacted by clod; after more than 80 percent of seeds come out of the land or the rice is in the stage of needle leaf, the tiling film is removed. The invention is applied during early spring in lower temperature period so as to better solve the problem of water insufficiency on the surface soil horizon of the seedling box and lead the seeds to acquire sufficient water supply; the invention has the advantages of very uniform moisture on the box surface, good insulating effect and slow change of temperature, which is very beneficial to the growth of early spring crops.

Description

Technical field: [0001] The invention relates to a film-covering method for raising seedlings in dry land, and belongs to the technical field of agricultural cultivation. Background technique: [0002] Film mulching is a commonly used technical means in modern crop cultivation. The common method is to cover the cultivated land with plastic film on the cultivated crops. Film covering can reduce soil water evaporation and heat loss, and play a role in heat preservation, water retention, advancing seasons, increasing production, and improving efficiency. [0003] There are mainly two kinds of existing film covering methods, namely arch covering method and tile covering method. [0004] The flat covering method can keep the water on the car surface. In the early sunny days, the temperature rises greatly, and the temperature drops at night. In cloudy and rainy days, the temperature difference between the inside of the film and the outside world is small. Generally, the height of...

AI Technical Summary

Problems solved by technology

This local drought area has a great impact on the early stage of seed germination to seedling growth, it will reduce the seed germination rate and seedling vigor, cause inconsistent early seed growth, and increase the difficulty of management

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