A high-yield and high-efficiency cultivation method of asparagus induced by water and fertilizer

Abstract

The invention provides a high-yield and high-efficient cultivation method for water manure induction and root confinement of asparagus. The method comprises the steps of seedling culture, weather enclosure building, preparation before planting, field planting, induction and root confinement cultivation, asparagus harvesting and disease control. The step of induction and root confinement cultivation comprises the substeps that a water conveying pipe is laid, wherein water manure is applied in a 30-60 cm deep and 60-80 cm wide soil layer; precise water management is performed, wherein the relative water content of soil of the 30 cm soil layer is maintained to be 55-65% in the asparagus harvesting period and maintained to be 65-75% in the vegetative period; formula fertilization is performed, wherein precise fertilization is performed according to the fertilizer requirement for various growth stages of the asparagus. By the adoption of the method, root systems of the asparagus are mainly distributed inside the 30-60 cm deep soil layer, and roots are prevented from being damaged; compared with the prior art, the depth of the soil layer where the root systems are mainly distributed is decreased by 15-20 cm, water is saved by 70-80%, fertilizer is saved by 50-55%, the consumption of a chemical agent is decreased by 60-70%, and the yield of the asparagus is increased by 25-35%.

Description

technical field [0001] The invention relates to an asparagus cultivation method, in particular to a high-yield and high-efficiency cultivation method of asparagus induced by water and fertilizer, limiting roots, and belongs to the technical field of crop cultivation. Background technique [0002] Asparagus is a perennial plant and a high-grade vegetable that can be used both as food and medicine. Once planted, it can be harvested continuously for 10-15 years, and the economic benefits of planting are relatively high. The cultivation of asparagus in mainland China began in the 1970s. In recent years, the planting area and output rank first in the world, and it occupies an important position in the global asparagus trade. [0003] Asparagus belongs to the fibrous root system, and the distribution of the root system develops horizontally, and the lateral growth can reach 2 m, but it is mainly distributed in the 15-40 cm soil layer. The root system is mainly composed of storage...

AI Technical Summary

Problems solved by technology

[0007] The traditional cultivation mode of asparagus has the following defects: (1) The spatial distribution of asparagus root system is shallow, the lateral growth area is wide, and there are easy root damage and yield reduction during production; (2) The soil porosity is small; (3) Excessive application of fertilizer and water; (4) Diseases and insect pests Serious, the amount of pesticide application is large; (5) The economic benefit is not high, and the labor force is large