Autumn corn is a kind of high-quality and high-efficiency late-autumn crop with wide adaptability, short growth period and rich nutrition, and many fresh fruit spikes supply the market. Its pollution-free cultivation techniques are as follows: First, the choice of species. The autumn corn should be selected as a hybrid corn or waxy corn with wide adaptability, strong disease resistance, short growth period, high quality and high yield, good ear appearance, and good taste and fresh ears. Second, land selection. The land should be harvested in the fall season where the preceding season crops are harvested in mid-July, where the soil is deep and medium in fertility. However, it should not be planted on steep slopes, barren lands, and soil blocks with serious soil erosion. Third, nursery transplanting. Autumn corn must be planted from late June to early July. Seeds must be sown 2–3 days before sowing to achieve early emergence and reduce the incidence of head smut. At the same time, seed dressing with dimethoate emulsion can prevent soil pests. Seedlings use fertilizer to raise seedlings, seedlings to do wet and cool. The seedlings can be transplanted when the seedling grows to two leaves, and 2000-2300 litters are planted in the mu, with 2 seedlings per litter, and watering and drought resistance after planting. Fourth, fertilization technology. The basic principle of fertilization is to apply enough base fertilizer, increase application of phosphorus and potassium fertilizer, early application of Miaofei, discretionary application of joint fertilizer, re-appropriation attack manure. In general, 30 kg of phosphate fertilizer, 8 kg of potassium fertilizer, 20 kg of ammonium phosphate or 7 kg of urea are used as basic fertilizer. After cultivating and weeding, each 5 kg of urea and phosphate fertilizer was used as seedling fertilizer. In the big bell-mouth period, re-approve the attack of manure, 50 kilograms of ammonium bicarbonate, or 15-18 kilograms of urea, apply deep ditching to cover the soil, and clear the soil to protect the seedlings. Fifth, pest control. In the trumpet period, the pyrethroid pesticides are sprayed with water 1000 times into the autumn corn leaf to prevent aphids and other hazards, but also can be used to mix furan into fine soil, or use 150 ml of bt emulsion per acre and dilute 1 kg of water. Mixing 15 kilograms of soil and soil is made into poisonous soil, which is thrown into the bell mouth of the heart and leaf plexus. However, pesticides must be stopped 15 days before harvesting. Six, auxiliary pollination. In the autumn corn, the density of the corn is large, and the flowering period is short. Artificial pollination is needed 1 to 2 times. The pollination time is 8:00 am.
Our Penlight Products is good in quality and competitive in price. We are manufacturer and supplier Penlight Products following your specific requirement. We are looking forward to your E-mail and establishing cooperative relationship with you! We would provide professional Penlight with good services for you!
Diagnostic Penlight, Nursing Pen Light, Medical Pen Lights, Medical Penlight Pupil Gauge Ningbo Cland Medical Instruments Co., Ltd. , https://www.ruipumedical.com