The price of green onions in these two years is very good, now the average purchase price is basically more than 2.5 yuan / catty, in addition to seeds, pesticides, fertilizers and labor costs of about 7,000 yuan, the basic yield per mu is about 12,000 jin -15,000 jin, an acre of land is almost a net profit of about 15,000 to 20,000 yuan! According to the current consumption of green onions in China, the price of green onions will remain firm in the past two years!
Green onions like nitrogen, potassium fertilizer, per 1000 kg of finished green onions need to absorb pure nitrogen 3 kg, pure phosphorus 0.55 kg, pure potassium 3.33 kg, although green onions are easy to cultivate, but the diseases are purple spot disease, downy mildew, virus disease, etc., and the most important insect pests are mainly underground pests, blackhead maggots, spotted flies, thrips, beet nocturnal moths, allium tube worms, etc.
Green onions are the most taboo continuous cropping, there is "spicy to spicy, must be blind, onion leek garlic, do not meet", so do not choose the ground with garlic, leeks, onions and other umbrella vegetables stubble, otherwise not only soil-borne diseases seriously affect the yield, underground pest blackhead maggots are more serious. So try to choose to make or stubble with kale, eggplant, winter melon, watermelon, cabbage.
The growth cycle of green onions is long, can reach more than 120 days, need to cultivate soil many times, and the wax layer of the leaves of the green onions is relatively thick, the spray is not easy to hit, and the liquid is difficult to adhere to the leaves, so if the insect infestation outbreak is serious during the growth period, especially the insect pests such as thrips and spotted flies, the spraying is a very headache problem.
At the same time, many times of soil cultivation has also led to the outbreak of underground pests, the medicine can not be filled, blackhead maggots, maggots can not be killed, will also cause a significant reduction in production, so we must prevent underground pests in advance!
In view of the long growth cycle of green onions and the inconvenient characteristics of multiple spraying, Henan Compson has developed a slow-release medicinal fertilizer for green onions, using cutting-edge biochemical control technology to create a multi-layer slow-control physical and chemical coating method, so that the three elements of medicine, bacteria and fertilizer in the product are perfectly integrated, slowly controlled release, and can be completely absorbed and utilized by crops, following the efficiency of crop growth cycle, fully achieving efficient absorption and efficient utilization.
Onion Le medicinal fertilizer is based on the ore source humic acid as the carrier, after the fusion into the fertilizer, through multi-layer coating into the compound microbial bacteria, and add a unique special pharmaceutical preparation. Using the reproductive parasitics of compound microorganisms and the transpiration of crop nutrient absorption, the effective preparation is perfectly distributed in crop leaves, body surfaces, stems and branches, so that pests will not survive in the soil, crop roots, leaves, stems, etc., so as to avoid crops from receiving aboveground and underground pests.
The use of onion medicinal fertilizer can make the prevention and control effective period up to 180 days, realize that only one crop per season can be used once, and no insect pests can occur in one season, reducing the use of underground pest agents, blackhead maggot agents, thrips agents, and spotted fly agents, and truly saving labor, time, trouble and money!