Fertilizer management Asparagus has been able to keep up with fertilizer when it leaves the fall. In October, if it is found that the premature decay of asparagus should be sprayed with Huimanfeng 500 times solution, 100 to 200 grams of Huimanfeng per acre each time can prevent asparagus defertility. The number of sprays depends on the seedling condition, and it can be sprayed 2 or 3 times in October. In the near future, the soil moisture content is low, and watering can be lightly performed. If the aridity is reached at the end of October or early November, water should be poured once to keep the soil moist and promote the development of the root system and scale buds, but not to flood the water. If heavy rain falls in October, pay attention to drainage. Diseases common to pest control include purple feather disease, anthrax and petechial disease, and stem blight is also easy to break out at this time. This year, root rot was also discovered and must be promptly controlled. Can take root and leaf spray combined method. The method of irrigating the root is to unscrew the sprayer sprayer, which can be connected to the base of the spray stem to allow the drug to seep underwater. Irrigation medicine is 50% of DXM 1000 times plus 1.5% of bacteria and 1000 times of harvest plus 800 times of abundance (or 1500 times of dilute oxazole) or 50% of DXM 800 to 1000 times plus 70% of MG-800. 1000 times. The above two methods can be sprayed alternately. The diseased plants should be removed in time to avoid infecting other plants. At the end of October, due to the coldness of the weather, a high-fat membrane-containing fungus should be sprayed to increase cold resistance. The main pests of the asparagus leaves are Spodoptera litura, which eat the stems and mimicry leaves. In severe cases, the leaves of the asparagus will be eaten up and eaten by the epidermis of the stems. According to the test, the methylisothiphos and Weinong 1 are mixed. Liquid killing effect is good, if found it should be timely prevention and treatment. Chemical regulation In order to prolong the functional period of leaves, promote the growth of root disks, and increase the number of scale buds, Tiantian cytokinin should be sprayed in the middle or early October. It has been determined that the new asparagus field sprayed 2-3 times Tiantian cytokinin in October to increase the weight of the root disk by 20% to 30%. The old asparagus can increase the young shoots by about 2 in the following year, and the thickness of the young shoots can be increased. increase. Therefore, it is an important adjustment measure to increase the production and improve the quality by spraying the field star cytokinin 500 times. Asparagus picking Asparagus stems have been fixed in October and 6 to 10 autumn stems per plant have been pulled into the functional phase. The young shoots regenerated in October need to supply nutrients in the root plate at the beginning of their growth. After they grow, they can supply photosynthetic root plates for themselves. Whether or not the young stems are left mainly depends on how much nutrients they need in the initial stage of growth and the amount of nutrients they can grow into the roots and leaves, depending on how much nutrients are available for the root plate. Can not cover its nutrients needed in the first birth, so the new stems into October should be harvested and sold, at this time the price is still good, can obtain a certain degree of economic benefits.
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