The main reasons for the drop and drop of fruit in greenhouses are: high or low greenhouse temperature during fruit setting, excessive planting density, lack of light, improper fertilizer and water management, etc. For these reasons, the following measures can be taken.
The first is to strengthen the greenhouse temperature regulation. The daytime temperature is controlled at 25°C~28°C, ventilation should be promptly over 30°C; nighttime temperature should be 16°C~17°C.
The second is the rational close planting and timely plant adjustment. The density of early-maturing varieties is preferably 50,000 to 60,000 plants per hectare. During the process of plant growth, the lateral branches below the first branch are removed, the old leaves and diseased leaves are removed, the pruning is performed in time, and a reasonable plant structure is controlled.
The third is to strengthen fertilizer and water management. Eggplant early watering management to control the main, less irrigation, more loose soil, especially when the water can not be too high during the flowering of the gate tomato, otherwise, it is easy to drop flowers and fruits. When the door grows to the size of the walnut, topdressing and irrigation are performed, and 150 kg of urea is recovered per hectare. At the same time, pay attention to the application of phosphorus and potassium fertilizers. When irrigation, in order to prevent early ground temperature drop, sunny morning irrigation and gutter irrigation can be adopted.
Fourth, timely prevention and control of pests and diseases. In the early stages of disease prevention and treatment. With 75% chlorothalonil 500 ~ 800 times control brown spot disease, with 40% dimethoate 1000 ~ 1500 times liquid control of red spider.
Asparagus is listed as "one of the top ten famous dishes" and "the first anti-cancer fruit and vegetable" in the world. It has the reputation of "the king of vegetables" and is a valuable vegetable with excellent taste. In 2020, the global asparagus planting area was 1.656 million hectares, a year-on-year increase of 2%; the global asparagus production was 9.772 million tons, a year-on-year increase of 3.6%.
Asparagus is actually a seasonal vegetable. If it has not been unearthed, it is called white bamboo shoots. After unearthed, there will be green bamboo shoots called green bamboo shoots. Asparagus has a lot of vitamin B and vitamin A and selenium and iron, as well as manganese and zinc and other trace elements. Asparagus also has various amino acids necessary for the human body. The selenium content of asparagus is higher than that of most vegetables, close to the selenium-rich mushrooms, and very similar to the selenium content of marine fish and shrimps.
Freeze Dried Asparagus,Green Asparagus,Dried Asparagus Dices,Asparagus Dices
Topower Technology Limited , https://www.topower-foods.com