Water floatation seedling method of cotton

Abstract

A method for culturing the cotton seedlings features that the porous seedling nursing tray, matrix and the nutritive liquid as nursery bed are used for culturing the cotton seedlings in floating mode. Its advantages are high germination rate, developed root system and low cost.

Description

Technical field: [0001] The invention belongs to a method for producing crop seedlings, in particular to a method for raising seedlings by using a substrate and a nutrient solution water body seedbed for floating cotton and a method for supporting transplanting of seedlings. Background technique: [0002] At present, there are two ways of raising cotton seedlings, one is substrate dry seedling raising, such as Yang Tiegang and Tan Chunsong of Henan Academy of Agricultural Sciences (Cotton factory seedling raising technology and its high-yield and high-efficiency technical regulations [J]. Henan Agricultural Science, 2003 (9) : 23-24) and other established matrix seedlings have achieved a survival rate of more than 95% and a 5-7d slow seedling period (shortened than the nutrient pot) after cotton seedlings are transplanted without soil, and also realize that cotton seedlings are stored indoors 3d can still achieve the ideal goal of the above indicators; Mao Shuchun (new progr...

AI Technical Summary

Problems solved by technology

Nutritive pot seedlings still have problems such as low emergence rate and easy seedling death (Zhang Yunsheng. Preliminary Discussion on Several Issues of Cotton Nutritive Pot Seedling Transplanting [J]. Crop Magazine, 1996(1): 13-15)

Because it is difficult to artificially control the natural conditions in the nutrient pot seedlings of each family, it is easy to encounter low temperature and low germination rate. In addition, the nutrient pot soil is difficult to disinfect, and the soil carries germs, and the cotton seedlings are prone to outbreaks of anthracnose, blight, and blight in the early stage. diseases and diseases

At present, the artificial hybrid cotton planted on a large scale in production has greatly increased the cotton yield, but the seeds need to be artificially hybridized, the cost of seed production is high, and the price of seeds is also high. If there are low emergence rates and dead seedlings, the cost of seedling cultivation will increase.

Seedlings in nutrient pots need to control weeds. Because earthen nutrient pots are generally more fertile, if the control is not proper, cotton seedlings will easily become tall seedlings. There are also some problems in nutrient pot seedlings that are easy to disperse. The survival rate of transplanting is low, and transplanting is labor-intensive and difficult. Problems such as slow seedling growth after planting affect early germination and yield

Cotton planting has gone through half a century from direct seeding in the 1960s to seedling cultivation in nutrient pots and mulching in the 1980s. Researchers have worked hard and sweated hard. However, these planting methods are time-consuming, labor-intensive, and costly. High, it is difficult to ensure that cotton seedlings come out at one time, and other reasons have always affected the development of cotton production in China and the increase in yield (Chen Zhende, Huang Junjie. Several common seedling bases have changed the status quo, using cotton hydroponic floating seedlings