Special matrix for soilless seedling breeding of rice

Abstract

The invention relates to a special matrix for the soilless seedling breeding of rice. The special matrix is prepared from the following components in parts by weight: 8-12 parts of pottery clay, 4-6 parts of mosses, 8-12 parts of rice hull ash, 15-25 parts of modified straw powder, 1-3 parts of garlic powder, 0.2-1 part of fennel powder, 4-6 parts of sea mud, 4-6 parts of sepiolite fabrics, 0.2-1 part of purple sweet potato anthocyanins, 1-3 parts of sodium selenite, 0.2-1 part of tea alkaloids, 1-3 parts of cicada slough powder, 1-3 parts of seaweed micropowder, 1-3 parts of water-soluble potassium, 5-7 parts of urea, 0.2-1 part of bean pulp, 1-3 parts of chelated zinc, 0.2-1 part of mugwort leaf water extracts, 0.5-1.5 parts of calcined kaolin, 0.2-1 part of peppermint water extracts, 0.2-1 part of compound sodium nitrophenolate, 1-3 parts of rape seed cakes, 0.2-1 part of tobaccos and 0.2-1 part of shell powder. The special matrix disclosed by the invention contains more than 40% of organics, more than 20% of humic acid and 60 million of live beneficial microorganism strains per milliliter. A seedling bred by applying the special matrix disclosed by the invention has the advantages of large root system number, multiple root hairs, high root capacity, no seedling stage disease and good seedling rooting, is capable of returning the green without transplanting a seedling after being transplanted, directly rooting for survival and starting the effective tillering in advance and can realize the output and income increase.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a special substrate for soilless seedling raising of rice. 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 turn green quickly. Under t...

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.