Black mulching film sandwich covering cultivation technique of southern winter potatoes

Abstract

The invention provides a black mulching film sandwich covering cultivation technique of southern winter potatoes. The southern winter potatoes are planted in double rows. After land is prepared, fertilizers are directly applied in furrows of a farmland, then seed potatoes are placed and planted on the two sides of the fertilizers, the seed potatoes are covered by soil to form ridges, the ridges are covered by black mulching films which are 80-100cm wide and 0.005-0.008mm thick, and finally the surfaces of the black mulching films are covered by fine soil. The black mulching film sandwich covering cultivation technique of southern winter potatoes has the advantages that the seeding, base fertilizer application and ridging processes are simplified, the major advantages of the conventional mulching film covering cultivation technique are reserved, the film breaking and seedling leading processes are omitted, and the defects that the seed potatoes are rotted because of high temperature, the seedlings are burnt and missed, grass grows on the surfaces of the ridges, the number of green-head potatoes is great and the like are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a black film interlayer covering cultivation technology of southern winter potatoes. Background technique [0002] Potato, a perennial herb, is also known as potato, potato, ground egg, etc. Potato underground tubers are round, egg, oval, etc., with bud eyes, red, yellow, white or purple skin, prismatic stems above the ground, hairy, odd pinnate compound leaves, terminal cymes, white, red or purple flowers. Potatoes are mostly propagated by tubers, and their tubers are edible and are important grains and vegetables. Potatoes are an anti-aging food. Nutrients contained in 100g potatoes: calcium 11-60mg, phosphorus 15-68mg, iron 0.4mg-4.8mg, thiamine 0.03-0.07mg, riboflavin 0.03-0.11mg, etc. In addition, potato tubers also contain carotene and ascorbic acid that are not found in cereal grains. From a nutritional point of view, it has more advantages than rice and flour...

AI Technical Summary

Problems solved by technology

[0003] Potato film mulching cultivation technology has been popularized and applied since the 1990s. Conventional film mulching cultivation has the functions of increasing ground temperature, increasing effective accumulated temperature, stabilizing soil moisture, saving irrigation water, improving soil physical and chemical structure properties, preventing soil compaction, controlling weeds, promoting Decomposition of soil organic matter, prevention of nutrient volatilization and leaching loss, enhanced photosynthesis, high yield, high efficiency, etc., but at the same time, there are disadvantages that the seedlings need to be ruptured to introduce seedlings, and the seedlings are easy to burn or even burn to death.

If the film is covered first, and then drilled to sow, the disadvantages of reduced seeding efficiency, increased labor, and irregular seedling emergence are also prominent. Improper operation will affect the effect of covering film when the hole is too large.

At the same time, in the south, when the sun is strong and the temperature is high, sowing in late autumn and early winter is also prone to high temperature and rotten seeds.