Nutrient soil for factory seedling raising of rice and preparation method of nutrient soil

Abstract

Nutrient soil for factory seedling raising of rice is characterized by being prepared from components in parts by weight as follows: 50 parts of garden soil, 5 parts of tilia sawdust, 10 parts of calcined loess, 2 parts of quicklime, 10 parts of trinity mixture fill, 10 parts of rice husks, 0.5 parts of potassium sorbate, 3 parts of EM strains, 2 parts of eggshells, 5 parts of sea mud, 4 parts of bran, 5 parts of urea, 0.3 parts of tea saponin, 2 parts of a bactericide, 3 parts of pig bone meal, 3 parts of carbonized straw, 1 part of purple sweet potato anthocyanin, 1.5 parts of active humic acid, 10 parts of dry pig manure and 20 parts of spring water. When the nutrient soil is applied for seedling raising, the number of branches of root systems of seedlings is large, the seedlings have much root hair and high root capacity, seedling diseases are avoided, seedlings turn green and are not recovered after transplanting and survive directly after rooting, effective tillering is started in advance, and increasing of both yield and income can be realized.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a nutrient soil for industrial rice seedling raising and a preparation method thereof. Background technique [0002] Since the 1980s, rice dry-raised sparse planting cultivation technology has been widely used in my country through introduction, experimentation and demonstration. With the great leap forward, rice production has developed rapidly, presenting a gratifying situation today, with large planting area, high per unit yield level, the total output ranks first in grain output, and remarkable economic benefits. [0003] The essence of dry rice seedling sparse planting and transplanting technology is: use fertile and loose dry field soil, and in the dry environment of the seedbed, cultivate strong and developed root system, short and thick stems and leaves, and low tiller seedlings, and transplant them to paddy fields After the environment, it will burst into roots and...

AI Technical Summary

Problems solved by technology

When the drought seedlings were first raised in the countryside, the farming was done according to the technical requirements. The seedlings cultivated were of good quality, turned green quickly, had many tillers, high yields, and were disease-free and disaster-free. Farmers have personally experienced this. It is very difficult to handle topsoil, decomposed farmyard manure and peat. There are few livestock and poultry, and low-lying floodplains, meadows, and grass ponds where peat can be dug have all developed into paddy fields. Most of the dry fields with water sources They have also been converted into paddy fields, and it takes 2m per hectare to grow seedlings per year 3 Seedling soil has been excavated for many years. All the dikes in the paddy field area and the resources of wasteland have been exhausted. Knowing that the current seedling soil is far from the purpose of dry breeding technology, there is really no way. The loess, beside the roadbed, and under the ditch, as long as it is dry and can be sieved into fine soil, it can be used as seedling bed soil. If it is not fertile, it will be supplemented with chemical fertilizers. The roots are long and diseased, the survival rate is low after transplanting, the greening is slow, and the tillering is late. It is not at all to achieve high and stable yields with high-quality seedlings, but to press the yield on chemical fertilizers and weather. When the year is good, the yield can be maintained, and there is a slight disaster. Rice farmers are miserable. If there is a spring flood year, there will be water everywhere and nowhere to collect soil, and there will be no way to do anything about agricultural production, which will delay the farming time.

[0005] At present, many units are studying the technology of rice seedling cultivation without soil, and they mostly use mineral materials such as expanded particles, fine sand or perlite as fillers, combined with inorganic fertilizer nutrients, practical application, and the practical effect of agronomy is very unsatisfactory.