Pelleting method for preparing multi-millet-seed pellet and sowing method thereof

Abstract

The invention provides a pelleting method for preparing a multi-millet-seed pellet to improve the drought resistance and sowing quality of foxtail millet seeds. The pelleting method comprises the following steps: subjecting foxtail millet seeds to winnowing and sieving, then rinsing the seeds with salt water with a concentration of 5%, removing impurities and then drying the seeds in the air; weighing parent soil of quaternary Malan loess, adding clear water accounting for 15 to 20% of the mass of the air-dried parent soil, carrying out standing for 30 to 60 min, then adding hydroxypropyl methylcellulose glue with a concentration of 0.5% and carrying out uniform mixing under sufficient stirring so as to prepare clay; and weighing one part of carefully chosen foxtail millet seeds, adding the clay weighing 30 to 40 times the weight of the foxtail millet seeds, carrying out uniform mixing under slow-speed stirring, carrying out rolling and pressing so as to obtain a clay sheet with a thickness of 8 to 10 mm, longitudinally and transversely cutting the clay sheet into square blocks by using a fine steel wire at an interval of 8 to 10 mm, sprinkling a small amount of bentonite powder on the surfaces of the square blocks, rocking and rolling the square blocks in a dressing machine, then taking out the square blocks, carrying out drying in the sun or low-temperature drying and then carrying out storage. The invention also provides a sowing method. According to the sowing method, a sower is employed for hole sowing or an airplane is employed for sowing. The sowing method is also applicable to aerial seeding of grass into loose soil after raining.

Description

technical field [0001] The invention belongs to the technical field of seed coating, and relates to a multi-grain seed pelletizing process and a method for sowing multi-grain seeds in one pellet. Background technique [0002] Millet originated in the Yellow River Basin of my country and has always been the main crop in the Central Plains of China. It is a cultivated species of the genus Foxtail in the Gramineae family. Its English name is foxtail millet, and it has a cultivation history of more than 8,700 years. Millet is resistant to drought and barrenness, has high water use efficiency and wide adaptability. It is an important characteristic food crop in arid and semi-arid areas in northern my country. The annual planting area in China is about 1.4 million hectares, and the total annual output is about 2.8 million tons. Hebei, Shanxi, The ten provinces of Inner Mongolia, Shaanxi, Liaoning, Henan, Shandong, Heilongjiang, Gansu and Jilin account for 97% of the country's tota...

AI Technical Summary

Problems solved by technology

In terms of millet pelletization research, at present, it is mainly single-grain pelletization technology, such as the invention patent "A kind of pelletized grain seed and its preparation method" declared by Yu Aili and others of the Millet Research Institute of Shanxi Academy of Agricultural Sciences. These The main problem of the method is that the ability of a single seedling of millet to top the soil is poor, the emergence of seedlings is not ideal, and the application range is small

In terms of multi-grain pelleting of millet, although there are also relevant research reports and patented technologies, such as Wang Xianrui, Chifeng Academy of Agriculture and Animal Husbandry Science, etc. The number of grain seeds in a single pill is small (less than 6), the conditions of the pelletized substrate are harsh and the process is complicated, and the industrial production cost is high. The effective storage period of granulated seeds is short, and the quality of sowing is difficult to control, which greatly limits the artificial and mechanical sowing of pelleted seeds, affects the germination rate, and is still difficult to promote and apply on a large scale in production.