Copy "baking" asks of high temperature, experts "support" for celery cultivation

After a brief cooling, from August 18, Jiangsu's high temperature returned again. Celery itself is a kind of plant that likes a cool environment. It needs weak light and like a cold environment. The long -term high temperature and highlights have a greater impact on celery seedlings and growth and development.

In order to reduce the damage to celery at high temperature and highlights, experts said that the following methods can be used:

Use shading net. Under high temperature and highlights, the temperature in the facility greenhouse is high. The use of a shading net of about 6 stitches can reduce the light and reduce the temperature in the shed. For the celery cultivated in the open field, you can use a bamboo pole or steel pipe to set up a shed, and fix the shade net for lighting.

Irrigation cooling. High temperature accompanies drought, celery is a large crop demand. The cultivation of celery in the fields and facilities can pour water slowly in the ditch after the ditch can be raised. You can also use water spraying methods to cool down and supplement the water required for celery growth. It is recommended to water and irrigate in the afternoon or evening, and should not be carried out at noon.

Strengthen ventilation. The temperature in the facility is high, and the ventilation in the shed needs to be strengthened. The ventilation wind speed should not be too large, so as not to blow down the celery and cause the celery to fall. Ventilation is recommended during noon. At the same time, try to use the opposite wind to cool down the shed.

Enhance resistance. By using plant hormone, reasonable fertilizer and water management, medium farming, etc., the growth of celery is promoted, and celery anti -high temperature and drought ability can be enhanced. In terms of hormones, such as cell division, shed acid, salicylic acid, etc. Try to apply nitrogen fertilizer as little as possible, and reasonably apply potassium fertilizer, phosphorus fertilizer, boron fertilizer, and some trace fertilizers, bacterial fertilizers, farmhouse fertilizers, etc.

Pay attention to pest protection. High -temperature weather is prone to pests, watering or excessive water spray also prone to diseases. The pests that are susceptible to high temperatures are moths, aphids, red spiders and other pest hazards. It can be controlled by high -efficiency and low toxic Avin, pib, and high -efficiency chrysanthemums, or use sexual inducers, black lights, yellow yellow In the facilities, insect -proof nets can be used for insects. Diseases are mainly epidemic, and can be suppressed, thoroughly, pyrococi, metharocytic manganese zinc, and frosty mold hydrochloride.

Extraction of facilities. It is difficult to carry out the cultivation of celery in autumn and winter celery. It is difficult to expose seedlings at high temperatures, and there are many weeds. It is recommended to use a matrix centralized concentrated seedlings under the control conditions of facilities, and the management is convenient.

Source: major agricultural technology collaborative promotion plan -special vegetable project

Author: Xiong Aisheng Shu Sheng Zeng Xiaoping Guo Shirong

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