At this stage, it is in a hot season, which is likely to cause premature aging of vegetables such as eggplant, pepper, cucumber and tomato. The symptoms are generally as follows: plant atrophy, yellowing of leaves, late fruit ripening, low yield, and even premature death of plants. Here are some precautions for the following symptoms:
First, the main role of picking the heart at the right time is to prevent the plant from growing, reducing the excessive consumption of nutrients and promoting the plant's multiple results. Practice has proved that the reasonable pruning of pepper can significantly increase its yield. The operation method is as follows: after the first pepper is harvested (the pepper mash is already in the rest stage), 8 branches growing above 4 big branches near the base are cut off. At the same time, it is necessary to strengthen the management of water and fertilizer, which not only can reduce the excessive consumption of nutrients, but also make the 4 large branches near the base grow good ventilation, reduce the phenomenon of falling flowers and fruit, and increase the yield of pepper. Cucumber should be topped around 25 leaves to promote the formation of the head melon, otherwise it will easily cause the nutrient transport to be blocked. Tomato picking time should be harvested after the 4th ear fruit, and leave 2 leaves on the ear, so as not to cause premature aging of the roots and the lower leaves of the plant. Do not pick the heart when the 4th inflorescence has just blossomed.
Second, remove all the fruits and vegetables of the old leaves, we must promptly remove the old leaves, dead leaves and diseased leaves in the lower part of the plant to prevent the field from being closed. This not only can reduce the nutrient consumption of the plant, but also effectively control the spread and spread of the disease, and is also conducive to ventilation and light transmission in the field, and promote the robust growth of the plant.
Third, early harvest of fruit and vegetables to promote early harvest, because early harvest can reduce plant nutrient consumption and prevent premature aging of plants.
Fourth, timely topdressing timely feeding of fruit and vegetable vegetables, can provide sufficient nutrients for plant growth and development, which is the key to prevent plant aging. The best period for top dressing is usually followed by 1-2 times after harvesting the fruit. It can be combined with irrigation to trace the decomposed human excrement, or apply nitrogen and phosphate fertilizer. Cucumber is applied with 10 kg of diammonium phosphate per mu, and 10 kg of urea is applied to 667 square meters of eggplant. The fertilizer should be applied more appropriately. The 667 square meters can be applied for 12 kg of diammonium phosphate, but it needs Dissolve the fertilizer in the water and apply it. It is not suitable for the pits, because the pepper is afraid of hurting the roots.
5. Irrigation and cooling In the hot summer, irrigation can be carried out according to the weather and soil moisture. When irrigating, small water should be poured to prevent the roots of the ridge from being damaged and damage the roots of the plants. At the same time, after the heavy rain, the drainage and flood control work should be done to ensure the normal growth and development of the seedlings.
Sixth, disease prevention and control of insects on fruits and vegetables should pay attention to the early prevention and control of aphids, generally 20% of the pyrethroid emulsion 800-1000 times the spray of leaves. Cucumber powdery mildew available efficient fungicide thiophanate 800-1000 times 50% or 25% Triadimefon WP 1200 times spraying, Pseudoperonospora cubensis available propamocarb fosetyl aluminum or 300-400 times 40% Liquid or 25% toxic mycelium 1000 times liquid spray control. The control of tomato gray mold can be sprayed with 75% chlorothalonil WP 600-800 times, or 50% thiophanate WP 500 times. To prevent and cure eggplant plague, it can be sprayed with 75% chlorothalonil 700 times solution or 50% chlordamine 500 times solution at the beginning of the disease. It should be sprayed once every 7-10 days for a total of 3-4 times. Spray evenly on the leaves and fruits, which can effectively control the development of the disease.
exposed shower system, exposed shower faucet,exposed shower valve,exposed shower set
Guangdong Kinen Sanitary Ware Industrial Co.,Ltd. , https://www.kinengroup.com