Orchard grass intercropping method

Abstract

The invention relates to the technical field of agriculture, and provides an orchard grass intercropping method. The method comprises the following steps: zones are divided, wherein grass is planted between orchard lines, and straws are laid within a range of 0.5m from tree trunks; plowing is carried out, wherein an EM inoculant is spread to grass planting zone soil, and plowing is carried out after 20-30 days; seed soaking is carried out, wherein grass seeds are soaked with the EM inoculant for 4-12h, and are air-dried at a shaded and ventilated place; sowing is carried out, wherein a sprinkler irrigation treatment is carried out with a diluted composite bacterial fertilizer, and uniform sowing is carried out with a sowing amount of 12-15kg/Mu when the soil is moist; management is carried out, wherein watering is carried out after sowing, and sprinkler irrigation is carried out with a diluted EM inoculant when seedlings uniformly shoot; and maintenance is carried out, wherein a grass height is maintained at 10-20cm, and a mixture of trimmed-off grass and straws is laid within a range of a tree base. The method has water-retaining, fertilizer-retaining and drought-resisting functions. With the method, farm chemical is not applied, and the effect of green manure is good. Chemical fertilizer is saved, and disease degree can be reduced from the source. Soil salinization can be effectively ameliorated, and fruits can be green and organic.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a method for planting grass in orchard intercropping. Background technique [0002] Grass mulching in orchards can effectively increase soil organic matter and soil fertility, maintain soil moisture and improve fruit yield and quality. The Ministry of Agriculture has vigorously promoted the clover mulching technology in orchards since 2000. [0003] Most of the current orchard mulching techniques use a single grass species, and there are some problems. [0004] (1) In orchards in dry land, semi-arid land or northern mountainous areas, the conflict with fruit trees competing for fertilizer and water is prominent; grass is planted on the ground of the orchard, and the root system in the soil at the root of the fruit tree is shallow, living in the same soil layer as the root of the grass In this way, grass and fruit trees will compete for fertilizer and water; [0005] (2) I...

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Problems solved by technology

[0006] (3) The occurrence of some diseases and insect pests tends to be serious: after the grass grows, it is difficult to remove the diseased leaves, the base of the pathogens is large, and it is easy to cause a large number of diseases in the next year. The simplification of grass planting will increase the insects and diseases that feed on this grass. Increase the frequency of orchard pests and diseases;

[0007] (4) Rodent infestation is aggravated, especially in orchards planted with alfalfa. In general, orchards planted with alfalfa and hairy leaves often attract rats on the trunk epidermis, affecting tree vigor and yield

[0008] For this, there is research to improve, and the application publication number is that the Chinese patent of CN104429420 discloses the strip-shaped grass growing method and the mixed sowing of grass seeds, and the mixed sowing grass seeds are based on grasses with short plants, such as: alfalfa, sweet clover, clover, Tianjing, astragalus and vetch, etc., can effectively improve soil compaction, have the functions of water retention, fertilizer retention, drought resistance and disease reduction, etc., but the effect of green manure is poor, and in the process of fruit tree growth, it does not reduce the use of pesticides. In addition, in this planting method, there are problems such as low emergence rate of grass seeds, various and miscellaneous diseases caused, difficulty in later management, increased use of pesticides, and increased management costs. At the same time, traditional grass planting can block soil-borne The role of pathogenic bacteria, but the number of soil-borne pathogens in the soil remains unchanged. Therefore, the resistance to emergencies is weak. Once the climate is suitable, diseases caused by soil-borne diseases will still occur, and the diseases cannot be fundamentally reduced.

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