Special measures must be taken for autumn vegetable production
Autumn vegetable production is vulnerable to adverse weather conditions such as high temperatures and heavy rains. In order to do a good job in autumn vegetable production, special measures must be taken in a targeted manner.
First, ridge cultivation or sorghum cultivation ridge cultivation should adopt double-row ridge cultivation method, which is conducive to drainage when rainfall, watering when drought. The sorghum planted sorghum should be about 10 cm above the ground. For most of the vegetable growers, the cultivation of hot peppers, high ridge cultivation is more effective to avoid the occurrence of dead trees.
Second, the principle of watering (A) for open-air vegetables, in the hot period must be done immediately after the heat of rain with well water irrigation, that is, pouring water, replace the hot water within the ram soil, reduce the ground temperature, in order to facilitate the root system Normal metabolism. (b) Watering is needed during droughts, but watering at high temperatures should be avoided to prevent wilting of plants. It can be watered in the afternoon or in the evening, and should be poured with water to reduce the temperature. On the other hand, it is best not to water the cloudy days. (c) timely drainage and flood prevention. For the whole growing period, it is necessary to keep the vegetables moist in the soil. For example, peppers should be poured with small water. When watering, water should not be allowed in the fields.
III. Plant Renewal of Solanaceous Vegetables Some of the solanaceous vegetables are pruned at the time of summer to allow the plants to be renewed, so that the peak of results can appear again after the summer. For example, green peppers are used to top-coat green pepper plants several times in July-August to promote the growth of lateral branches and lateral buds; cut off all the branches of Simen Doo-Jiao pepper, and cut the mouth at 1 cm above the branches, using a black thin film to cut the cuts. Seal, and then top-dressing watering in the afternoon, apply 15 kg of urea per acre, which is conducive to lateral bud growth. When the flower buds of the cut green pepper plants appeared, they were selected for shade or sunny afternoon, and the buds of green peppers were harvested after 1 month.
Fourth, melons, vegetables, timely planting, colonization, cultivation of melons, autumn vegetables, sowing time is strict, early sowing, high temperature can cause melon vegetables seedlings, causing virus disease and other diseases; late sowing, will make the melon vegetables, the effective temperature accumulation period Reduced, shortened growth period, affect quality, yield and benefits. The cultivation of melons and vegetables in autumn must be based on the biological characteristics of different species, climate conditions in different regions, and different cultivation facilities. In addition, due to the high temperature and strong sunlight in August, the growth and development of seedlings is extremely unfavorable. Therefore, in the growth process of the melon vegetables seedlings, near the noon, shade nets are used to cover and water in the morning and evening to weaken the light intensity and reduce the temperature.
V. Timely colonization and promotion of early seedlings In early droughts and high temperature, in order to ensure early survival and early seedling defoliation after planting vegetables, it is necessary to: (1) Arid plots should be watered first, then soil preparation should be done, fruits and vegetables should be Use silver gray plastic film or black plastic film. (b) strive to plant seedlings, and take care not to damage the root system. (3) To plant colonies on a cloudy day or after 4:00 pm, immediately apply roots and fertilizers (ruffled water or 0.2% ternary compound fertilizer in clean water) immediately after planting, and continue to water in the evening. 3 ~ 4 days. If conditions permit, sunny days cover the shade net for 4 to 5 days. (4) Covering the grass or wheat straw in the glutinous rice flour has the effect of significantly lowering the temperature and moisture.
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