What problems should be paid attention to in asparagus planting?

What problems should be paid attention to in asparagus planting? Please introduce the guidelines for asparagus planting to pay attention to the following aspects: fertilizer and water management asparagus has already caught up with enough fertilizer when it leaves its autumn stem. In October, if asparagus premature senescence is found, 500 times Huimanfeng solution should be sprayed on the leaves, and 100g Huimanfeng 200g per mu can prevent asparagus from being fattened. The number of spraying depends on the seedling condition, and it can be sprayed 2 times or 3 times in October. In the near future, the soil water content is low and can be watered lightly. if it is dry at the end of October or early November, it should be irrigated once to keep the soil moist and promote the development of roots and scale buds, but not heavy water. If it rains heavily in October, you should pay attention to drainage. The common diseases to control diseases and pests are purple striped feather, anthracnose and leaf spot, and stem blight is also easy to break out at this time. Root rot has been found again this year, which must be prevented and treated in time. The combination of root irrigation and foliar spray can be adopted. The way to irrigate the root is to unscrew the sprayer head, which can be connected to the base of the spray stem and let the medicine seep. The root irrigation drug is 1000 times 50% carbendazim plus 1.5% chlorpromazine 1000 times plus harvest pure 800 times (or 1500 times) or 50% carbendazim 800 times plus 70% ultra-micro mancozeb 800 times 1000 times. The above two methods can be sprayed alternately. Diseased plants should be removed in time to avoid infecting other plants. At the end of October, due to the cool weather, bacteria with high lipid membrane should be sprayed once to improve the cold resistance. The main pest of asparagus branches and leaves is Spodoptera litura, which bites on stem branches and pseudo-leaves, and in serious cases, it will eat up the pseudo-leaves and eat the epidermis of stem and branches. according to the experiment, the mixture of methyl isosaliphate and Weinong No. 1 has a good killing effect, which should be controlled in time once it is found. In order to prolong the functional period of leaves, promote the growth of root disk and increase the number of scale buds, Tianxing cytokinin should be sprayed in the early and middle of October. It was determined that spraying Tian Xing cytokinin 2 times in October in the new asparagus field could increase the root disk weight by 20% to 30%, and the old asparagus could increase the young stem by about 2 in the following year and increase the thickness of the young asparagus. Therefore, 500-fold solution of cytokinin is an important regulatory measure to increase yield and improve quality. The stems and branches of asparagus picked in October have been fixed, and each plant with 6-10 autumn stems has topped into the functional period. The young stems regenerated in October need root plates to supply nutrients at the initial stage of their growth, and only after they grow up can they carry out photosynthesis to supply the root plates themselves. Whether the new young stem stays or not mainly depends on the difference between the nutrients needed at the initial stage of its growth and the amount of nutrients that its branches and leaves can supply to the root plate. because after October, the new young stem can not make up for the nutrients needed at its birth, so the new young stem in October should be harvested and sold, and the price is still good at this time, and certain economic benefits can be obtained. Click to get more asparagus planting techniques click to get more vegetable planting techniques