Low-temperature weather vegetable management methods

The low temperature has an adverse effect on the growth of vegetables, causing vegetables to fall, fruit drop, rotten roots and stems of autumn vegetables, rot of the stem base, the following points are proposed for the above situation:

Exploited vegetables should take protective measures: 1. Strengthen field management to promote strong seedlings, cultivating and weeding to increase soil air permeability; timely drainage after rain, control of flood damage. 2. Spray pesticides in a timely manner to prevent the occurrence of diseases. Broad-spectrum fungicide such as chlorothalonil and carbendazim can be used. Pesticides such as phoxim and cypermethrin can be used for pest control. 3. Harvest timely according to weather conditions.

Protected vegetables should take protective measures: 1. Close the shed when it rains, prevent rain from entering the shed, release air after the rain stops, and reduce temperature and humidity to prevent physiological diseases.

2. Shed room temperature management. Strengthen the heat preservation and temporary warming measures, and cover the straw curtain with rainproof plastic film. Low temperature should adopt warming stove and other heating measures. The night temperature in the greenhouse should not be lower than 6°C. When the temperature of the booth is too high, small winds should be placed. When the temperature is low, temporary heating measures such as electric fans can be used to increase the temperature.

3. Shed room lighting management. At present, overcast weather must uncover the straw in the daytime. In case of misty weather, weeds should be exposed as early as possible to increase the scattered light. Even cloudy days should use light curtains, sun lights, etc. to fill light.

4. Fertilizer management. To minimize watering in the shed, watering is required when watering, and it is best to use water-saving irrigation methods such as drip irrigation under the membrane or furrow irrigation under the membrane to reduce the humidity in the greenhouse. In cloudy days, the leaves can be sprayed with 1%-3% sugar or 1% potassium dihydrogen phosphate to supplement plant nutrition and increase resistance.

5. Prevent “flashing phenomenon”. After sunny days, prevent the plants from "flashing seedlings." After uncovering the grasshopper on the morning of the sunny day after sunny days, the plant changes were observed. When the plant was found to be wilting, it was not possible to adopt the method of cooling the air, so that “flashing seedlings” would appear. The correct way is to find that the plants are wilting and put back some grasshoppers. After the plants return to normal, the grasshoppers are uncovered. When the plants appear wilting again, another part of the grasshoppers is pulled back and the plants are sprayed with nutrient solution to supplement the plant's moisture. And nutrients are repeated several times until the plants return to normal.

6. Timely control of pests and diseases. Pay attention to the occurrence of diseases and insect pests, traps and insecticides should be used indoors to prevent the occurrence of insect pests such as whitefly and aphids. After the occurrence of the disease, dust or aerosols should be promptly used for disease prevention, and the prevention and control of diseases such as gray mold and epidemics should be emphasized.

7. Plant management. Reasonably thinning and thinning fruit, timely clearing old leaves in the field, reducing the nutritional burden of the plant, avoiding pruning in cloudy days, preventing virus infection, and reducing disease occurrence.

8. Cold fruit vegetables are harvested according to the situation.

Diagnostic Devices

In the Diagnostics devices category, we have put together a comprehensive selection of products that support the determination of a reliable diagnosis, from diagnostic instruments for monitor vital signs like Sphygmomanometer, mercuric or Digital Thermometer, Weight Scale with height measuring, Stethoscopes to ETN diagnostic devices, such as Audio tester Sound gear ,Tuning fork with wood base, Pupil pen light and Nasal specula. Also in this category, you will find Reflex hammer, Alcohol tester and Blood Glucose Tester .

And other Medical diagnostic and monitor instruments such as ECG Machine , Patient Monitoring, Fetal Doppler will be described in the category of Medical Instruments.

Diagnostic Devices,Engine Diagnostic Device,Mini Diagnostic Devices,Personal Diagnostic Devices

NINGBO YINGMED MEDICAL INSTRUMENTS CO.,LTD , https://www.chinayingmed.com