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The cultivation techniques of Wangfengzao 80
Wangfengzao 80 is a very early-maturing cowpea variety. It was bred by Wangjiang County Economic Crops Technology Research Institute in Anhui Province. It has good quality, strong resistance and high yield. It is very suitable for early spring cultivation. considerable. First, the variety characteristics. Plants are sprawling, strong growth potential, branching 3-4, the main side of the vines can be scab, but the main vine scab-based. The main vine began to scab in the second quarter. The lateral vines began to flower in the first quarter. The flower branches were thick, about 38 centimeters in length, with a high scab rate and up to six knots per inflorescence. Smaller leaves, less leaves, light green, lavender flowers, tender green light green, about 80 centimeters long, up to 120 centimeters, diameter 0.8-1.2 centimeters thick, 28-35 grams in weight. Each pod has 18-22 seeds, the testa brownish red, and a thousand grains of about 180 grams. The spring sowing period is about 90 days, and the harvest period is 22-30 days. The tender pods are long, round, stick-shaped, solid, fleshy, crisp, with less fiber, less susceptible to aging, no granules, no tail, and green and uniform. When the main vines bloom in 2 leaves, they will be harvested in spring sowing 45-50 days, harvested more than 10 days earlier than the glutinous 28-2. It produces 2500-3000 kg per mu, and its early yield is higher, 50% higher than other varieties. It is more resistant to heat and cold, and has stronger resistance to rust, gray mold and viral disease. It is suitable for early spring cultivation. And can be planted in most parts of our country. Second, the cultivation techniques 1, soil preparation and fertilization. Replanting basal fertilisers, typically 2500-3000 kg per hectare of farmyard manure, 80-100 kg of cake fat, and 50 kg of high-efficiency ternary compound fertilizer. After deep plowing, it is made into a 1.3-meter-wide plutonium (including a ditch). ? 2, timely sowing. The variety is cold-resistant and insensitive to light. It is particularly suitable for cultivation in small greenhouses in early spring, double-film mulching and mulching. Small arch shed cultivation with double membrane covering technology can be broadcast live in late February, mulching film coverage technology can be broadcast live in early March, open field broadcast can be in late March. 3, rational close planting. Using hole sowing, open 3cm deep hole, hole spacing 22-26cm, sowing 2 lines per hole, planting 4000-4600 holes per acre, planting 4-5 grains per acre, about 3-4kg per acre . 4, field management. After emergence, take the mulch to cover in time to scratch the mulch to draw the seedlings out, then use the soil to press the gap of the mulching film, and the time seedlings, leave 3 strains per hole, remove weak and strong, when the seedling height is 20 centimeters, remove it in time. Arch shed and put up the "person" frame, cited seedlings on the shelves. Before the seedling stage, the seedling stage should be dominated, with little or no watering. When entering the clams stage, large fertilizers are needed, top dressings are applied every 5-7 days, and a total of 3-4 top dressings are used to prolong the harvest period to prevent premature aging. Pay attention to the combination of nitrogen, phosphorus, and potassium during fertilization to increase foliar fertilization. During the flowering stage, the water requirement is relatively large. In case of drought, it should be watered in time, otherwise it will result in falling flowers. During the growth, attention should be paid to removing the old leaves of the plant in time in order to facilitate ventilation. 5. Pest control. At the flowering stage and the early stage of the scab, locusts and spider mites are the main pests. It is also possible to treat both together, with a net of phlegm, enemy locust, etc. In the later period, pests were mainly soybean meal, and were treated with Zhiling Ling plus Pyrethroid pesticides. Disease: early because of unstable climate, low temperature or rainy weather, the epidemic is very prevalent. Therefore, Garinong is used once a week for prevention and treatment, high-temperature virus is easy to develop in the later period, and the virus is used to kill stars or diseased diseases and virus A. Yes, 1 treatment per week.