Minimum-tillage and no-tillage mulching cultivation method of lemon orchard

Abstract

The invention relates to a minimum-tillage and no-tillage mulching cultivation method of a lemon orchard. The minimum-tillage and no-tillage mulching cultivation method comprises the following steps of: planting lemons in the flat land lemon orchard according to the requirement of enabling the distance between plants * the distance between rows to be 2.0-2.5m * 3.5-4.0m; planting pasture among lemon rows, planting 1 row of the lemons on each platform ladder surface of the sloping land lemon orchard and planting the pasture on platform sloping surfaces; timely cutting the pasture in growing seasons for mulching around tree trunks of the lemons, applying a basal fertilizer for the lemons once annularly, and performing drop irrigation fertilization or fertilization by a fertilization gun in other periods except the application of the basal fertilizer. According to the minimum-tillage and no-tillage mulching cultivation method, the frequency of tillage in the lemon orchard can be reduced, the using frequency and the quantity of the fertilizer and pesticide can be reduced, the production of the 4-year-old lemon orchard can be increased by above 120kg / mu, the yield of fresh forage of the 1-5-year-old lemon orchard can be up to 3850-2930 kg / mu, organic matters, available nitrogen, available phosphorus and available potassium in soil are increased, and the orchard can be developed in a sustainable and healthy manner.

Description

technical field [0001] The invention relates to a less-tillage and no-tillage mulching cultivation method for lemon orchards, belonging to the technical field of horticultural plant cultivation. Background technique [0002] At present, more than 40 countries at home and abroad, such as France, China, Canada, Spain, Brazil, Australia, Japan, etc., have conducted research on the no-till method, focusing on rice, corn, wheat, beans, potatoes, sugarcane, rape and other crops. Mainly, most of them focus on food crops, and less in orchard production. The main key technical problems lie in the selection and matching of covering species; supporting no-tillage machinery and equipment; supporting fertilization technology; and the inability to balance short-term and long-term benefits of orchards, etc. [0003] With the rapid increase of population and the rapid development of social economy, the social demand for agricultural products has increased sharply. In order to meet social n...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the existing orchard production that adopts the mode of plowing and turning the soil for many times a year, and the ground is exposed to cultivation management, which leads to the perennial orchard soil bareness, serious damage to the soil structure, serious aggravation of soil erosion, and the use of chemical fertilizers and pesticides. Defects and deficiencies such as increased frequency and decreased cultivated land quality, the purpose of the invention is to provide a method that can effectively change the soil structure of lemon orchards, promote the increase of soil organic matter and nutrient content, accelerate the cultivation of orchard soil carbon pools, and reduce N, P and soil erosion. , increase the ecological diversity of orchards, reduce environmental pollution, save costs and labor input, and lead the industry to low-carbon, sustainable and healthy development of lemon orchards with less no-tillage and mulching cultivation methods

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