High temperature, rain and fruit decay
Symptoms of premature failure of fruits and vegetables are: atrophy of plants, yellowing of leaves, late fruit ripening, low yield, and severe death of plants. The main cause of premature aging is high temperature and rain, and the prevention measures can be as follows:
1, remove old leaves
All kinds of fruits and vegetables should be promptly removed from the old leaves, dead leaves and diseased leaves in the lower part of the plant in order to prevent field closure. This will not only reduce the nutrient consumption of the plant, but also effectively control the spread and spread of the disease. It is also beneficial to The fields are airy and light-transmitting, which promotes robust growth of plants.
2, timely picking
The main role of topping is to prevent plant lengthening, reduce excessive nutrient consumption, and promote multiple plant outcomes. According to the survey, reasonable pruning of peppers can significantly increase their yields. At the same time, management must be strengthened. This will not only reduce excessive nutrient consumption, but also make the four branches near the base grow light and airy. Reduce the phenomenon of falling flowers and rot and increase the yield of peppers; cucumbers must be towed around 25 leaves in order to promote the formation of turnips, otherwise it may cause the transport of nutrients to be hindered. Tomato picking time should be after the 4 ear fruit harvest, and leave 2 leaves on the ear fruit, so as not to cause premature root failure and leaf curling under the plant, should not bogey in the fourth inflorescence just a flowering topping.
3, early harvest
Fruit vegetables promote the early harvest of fruits, because early harvest can reduce plant nutrient consumption and prevent premature aging of plants.
4, timely fertilizer
The timely top-dressing of fruit and vegetable vegetables can provide sufficient nutrients for plant growth and development, which is the key to prevent plant aging. The best time for topdressing after harvesting the fruit is generally topdressing 1-2 times, which can be combined with irrigation to catch up to human fecal urine, followed by nitrogen fertilizer and phosphate fertilizer. Cucumber topped with 10 kg of DAP per acre and eggplant topped with 10 kg of urea per acre. Chilli followed up with more fertilizer. The amount of diammonium phosphate 12 kg per mu can be topped off, but the fertilizer needs to be dissolved in water. For topdressing, it is not appropriate to plan for topdressing because chili is scary.
5, irrigation cooling
In the hot summer season, irrigation can be performed according to the weather and soil moisture conditions. When irrigation, small water should be poured to prevent scouring the roots of the ridge to damage the plant roots. At the same time, after the heavy rain, the flood prevention work must be done to ensure Normal growth and development of seedlings.
6, disease prevention and pest control
Fruit and vegetable vegetables should pay attention to early prevention and control of aphids, generally can be used 5% acetamiprid EC 1000 times or 10% imidacloprid WP 1000 times. When spraying, evenly sprayed on the leaves and fruits, this can effectively control the development of the disease.
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