Harmless treatment method for seedling bed of small plant seeds

Abstract

The invention relates to a harmless treatment method for a seedling bed of small plant seeds. Soil of the seedling bed is harmlessly treated by high temperature of smouldering. Weed seeds, bacteria, nematodes, viruses and eggs are killed, diseases and insects are prevented by tea seed cakes, the problem of plant diseases and insect pests in production of the seedling bed is solved comprehensively, the problem of weeds of the seedling bed is also solved, the seedling culture cost can be reduced, the structure of soil is improved, soil fertility is improved, and pesticide is prevented from polluting the environment. The method comprises the following steps: (1) selection of the site of a nursery garden, (2) harmless treatment of base soil of the seedling bed, (3) preparation of nutrient soil, (4) preparation of soil covering the seedling bed, (5) treatment of a furowed field, (6) preparation of the seedling bed, (7) application of the base soil of the seedling bed, (8) seed sowing and soil covering, (9) shielding with protecting nets, and (10) seedling management.

Description

technical field [0001] The invention relates to the field of agriculture and forestry seedling production, in particular to a harmless treatment method for seedling beds of small plant seeds. Background technique [0002] There are a variety of weed seeds, bacteria, nematodes, viruses and insect eggs in the soil for planting. If the seedbed is not treated harmlessly before seedlings are planted, not only will there be harm from germs, viruses, and insect pests, but there will also be harm in the seedbed. Weeds grow. At present, there are two types of seedling soil treatment: (1) soil disinfection, the soil is disinfected with soil disinfectant before sowing, the purpose is to kill bacteria, nematodes, viruses and eggs, to achieve sterilization and disease prevention; (2) closed treatment , Sealing the soil with a soil sealing treatment agent, the purpose is to suppress or kill the weeds that are germinating, but it is ineffective for the grass species that have not yet germ...

AI Technical Summary

Problems solved by technology

The high temperature treatment method is to use high temperature to kill germs, insect eggs and weed seeds. The high temperature treatment methods include steam disinfection and hot air disinfection. Steam disinfection is the most effective method in soil heat treatment and disinfection, but it is rarely used due to cost issues; Hot air disinfection, such as Chinese patent 99816005.9 authorized announcement number CN1112092C, discloses a high-temperature disinfection soil equipment, which generates 200-700°C high-temperature hot air through a burner, and blows the hot air into the soil treatment chamber to act on the soil. Combustible substances such as combustible substances are easy to cause environmental pollution, and the production cost is high, so it is difficult to use on a large scale

Pesticide treatment is a method of using medicaments to directly act on the soil to kill germs and eggs. The effect is good and it is widely used, but it destroys the soil structure, causes environmental pollution, reduces fertility, and cannot kill weeds. It needs to be sealed with a treatment agent Used together to suppress or kill germinating weeds, but it is ineffective for grass species that have not germinated, and there is a problem of removing weeds after emergence

At present, the removal of weeds is mainly done manually. Small seed plants such as Jatropha and Cortex Phellodendri have small seedlings and grow on the shallow surface of the soil. When removing weeds, it is inevitable to bring the seedlings together. Weeding is extremely difficult, time-consuming and labor-intensive. cause a severe reduction in production;