Is it safe to cultivate vegetables without soil?

Soilless cultivation of vegetables is a vegetable cultivation technique that uses nutrients containing essential elements for plant growth and development without natural soil, so that plants can normally complete the whole life cycle. whether it can provide plants with a coordinated proportion and appropriate concentration of nutrient solution is the key to the success of cultivation. Let's take a look at whether soilless vegetables are safe or not.

Is it safe to cultivate vegetables without soil?

Soilless cultivation represents the development direction of modern agriculture, there is no evidence at home and abroad to prove that soilless cultivation is not safe, but the quality of vegetables is generally safe. In the horticulture industry developed in the Netherlands, Japan, Britain, South Korea and so on, there is a large area of development, and even the representative of high-end vegetables. Compared with traditional vegetable cultivation, it can protect soil, increase yield with large mulch, and ensure product quality. Soilless cultivation can be used to produce vegetables in some areas where there is no soil. The biggest challenge is to continuously improve the flavor quality of products.

What are the vegetables grown in soilless culture?

1. Tomato: soilless cultivation of tomato is generally carried out in greenhouse, and this cultivation method can be carried out all the year round. Soilless cultivation of tomato in solar greenhouse can determine the arrangement of stubble according to the performance of greenhouse, which is mainly produced in winter and spring and early spring.

2. Balsam pear: bitter gourd is an annual climbing herb of Cucurbitaceae, with pilose stems, branches, petioles and pedicels, axillary tendrils, lax conditions for cultivation, vigorous growth, strong fruit setting ability and long harvest time, so it is very suitable for soilless cultivation.

3. Eggplant: the area of eggplant cultivated in solar greenhouse and greenhouse has been expanding in recent years, but due to continuous cropping, diseases, especially soil-borne diseases, are serious. Soilless cultivation can overcome this problem, and it has gradually become popular in recent years.

4. Ginger: the traditional planting mode of continuous cropping of ginger can not remove the residual nematodes and ginger blast pathogens in the soil, so it is easy to be infected with ginger blast. Once infected with ginger blast, a large area of plants will wither and die. Soilless cultivation can solve this problem.

5. Cucumber: cucumber is often harmed by diseases and insect pests in production, but soilless cultivation can avoid diseases and insect pests and continuous cropping obstacles caused by soil infection. it also has the characteristics of reducing pesticide dosage, improving crop yield and quality, saving fertilizer and labor, and is not restricted by land fertility.

Advantages of soilless cultivation of vegetables

1. It can increase yield: all kinds of nutrient elements needed by crops in soilless cultivation are artificially prepared and applied into nutrient solution, and nutrients can be supplied scientifically according to crop types and different growth stages of the same crop, so crops grow and develop healthily. Strong growth.

2. The environment is clean and hygienic: soilless cultivation uses inorganic fertilizer, while soilless cultivation applies organic fertilizer, fertilizer decomposition and fermentation, which not only produces odor to pollute the environment, but also causes the egg breeding of many insect pests and harms crops, so soilless cultivation does not have these problems.

3. Water-saving, fertilizer-saving and labor-saving: soilless cultivation does not require ploughing, ploughing, weeding and other operations. Watering and topdressing is solved at the same time, and it is supplied regularly and quantitatively by the liquid supply system, which will not cause waste, and the management is very convenient, which greatly reduces the labor intensity.

4. Avoiding continuous cropping obstacles: in the field planting management of vegetables, reasonable land rotation and avoiding continuous cropping is one of the important measures to prevent the serious occurrence and spread of diseases. Soilless cultivation, especially hydroponics, has fundamentally solved this problem.

5. free from soil restrictions: soilless cultivation makes crops completely out of the soil environment and is not limited by soil quality and water conservancy conditions. soilless cultivation can be used in many deserts, wastelands or areas where it is difficult to cultivate.

6. make full use of space: soilless cultivation can get rid of the constraints of the land, so it can not be restricted by space, and can use the flat roof of urban buildings to grow vegetables and flowers, virtually expanding the cultivation area, and can also be produced according to the will of people.