Method for using polylactic acid fiber to prepare germinating papers

Abstract

The invention discloses a method for using polylactic acid fiber to prepare germinating papers. According to the method, an ordinary-pressure low-temperature plasma technology is adopted to dispose the polylactic acid fiber, then the oxygen-containing groups on the surface of the polylactic acid fiber are increased, and therefore, the hydrophilic performance of the polylactic acid fiber is improved; by adopting the improved polylactic acid fiber as the matrix for preparing the germinating papers, the hydrophilic performance and water-retaining property are all excellent; after being sprayed by nutrient solution and paclobutrazol, the polylactic acid fiber are used to fabricate a paper cup to replace a polyethylene cup usually used in the prior art; a seed is placed inside the germinating paper cup, and the surface of the seed is covered by a layer of sterile dry land soil; after being cultivated, the rice seedlings with the germinating paper cups can be planted inside the soil without worry about pollution on the environment of the land and requirement of transplantation, and moreover, the seedlings have no restrain period during the process of growth, and the ability of restraining water and fertilizer is excellent. By reducing the use amount of seedbed soil, the germinating paper prepared by the method has the advantages of seedling cultivation without blending of fertilizer, no occurrence of corrosion, slow effect emission, and a longer useful life of fertilizer; meanwhile, the produced seedlings grow up in accordance with each other and the roots of the seedlings are strong; additionally, the seedlings can turn green quickly and tiller early and substantially. The method for using polylactic acid fiber to prepare germinating papers has the advantages of less consumption of work, labor and water, less costs, and more effectiveness.

Description

technical field [0001] The invention relates to the technical field of rice planting, in particular to a method for preparing seedling raising paper from polylactic acid fibers. Background technique [0002] Rice is one of the important food crops in my country. The traditional rice seedling raising method is water seedling raising, which not only wastes water, occupies seedling fields, but also is restricted by region, especially in the northern region. With the discovery of rice dry-raised and sparse-planting technology, the problem of seedling-raising in northern water-deficient areas has been effectively solved. Dry-raised and sparsely planted is a farming technique that adopts the method of dry-raised seedlings to cultivate seedlings, expands and reduces seedling planting, and supports high-yield cultivation. It has the advantages of water saving, labor saving, seed saving, seedling field saving, cost saving, production increase and income increase. Robust seedlings a...

AI Technical Summary

Problems solved by technology

[0003] However, the popularization and promotion of rice dry-raising and sparse planting technology has also brought about problems such as difficulty in obtaining soil for rice seedling raising and damaging ecology.

Due to the need to use a large amount of humus soil and dry field soil as seedling soil, this technology will cause serious damage to the plow layer soil and meadow vegetation in dry fields; due to the late warming in spring in the north, the soil thawing is delayed, and soil extraction is difficult, which will also cause timely sowing. ;Using upland soil as seedling soil is prone to phytotoxicity, which affects the normal growth and development of rice seedlings; when using conventional culture soil to raise seedlings, it is necessary to add chemical reagents to weed, strengthen seedlings, kill bacteria, adjust acid, and there are also phenomena such as uneven fertilizer mixing that causes seedlings to burn.