In recent years, with the adjustment of rural industrial structure, many places have used peanuts, melons and other crops among sugarcane fields to increase the multiple cropping index and increase economic income, and achieved good results.
First, the advantages of spring peanuts and sugar cane
1. Improve the multiple cropping index. Peanuts are bushy crops, seedlings are short, sugar cane is a high-stalk crop, erect, long growing period, using the difference between the planting time and the seedling growth space, that is, in the prepared spring planting sugar cane, first Planting peanuts and planting sugar cane will increase the economic income of peanuts.
2. Easy to operate. Peanut intercropping sugar cane, just plow a ditch in the peanut line to grow sugar cane, easy to operate, and can stagger the spring season.
3. Increase sugarcane organic fertilizer. After the peanuts are harvested, the bean vines and the remaining bean roots and litter are buried in the cane head, which can increase the organic fertilizer of sugar cane and increase the yield of sugar cane.
Second, intercropping technology
1. Fine land preparation. Peanut fruit needles into the soil, pods expand, root growth, rhizobial breeding and nitrogen fixation activities need a loose, deep, fat soil environment. Sugar cane also needs such a soil environment. Therefore, it is necessary to finely adjust the soil and improve the soil for fertilization in order to obtain high yield. The cultivated land is generally ploughed with two tractors and two ploughs, deep and without disturbing the soil layer, and the depth is 35 cm. If you do not have the machine, you can use the cow plough to achieve deep, loose, flat and broken soil.
2. Planting schedule. Spring peanut planting period: The local spring peanut planting time in Xuwen County is before and after the “Great Cold†or in late January, and it is under the warm weather (temperature above 16 °C). The peanuts of this period can be flowered under the mild and sunny Qingming Festival, avoiding the hot and dry westerly weather in May, which is conducive to the expansion of peanut needles and pods. Sugarcane planting period: Mastering the time of planting sugar cane is the key to obtaining a double harvest of peanut cane. According to experience, it is most suitable to plant sugar cane 32 to 40 days after peanut planting, from late February to early March. If sugar cane is grown too early, sugar cane will compete with peanuts for space, fight for sunshine, compete for soil, compete for fertilizer, and affect the photosynthesis of peanuts and their yield. If the sugarcane is planted too late, the peanut seedlings are long and covered with sugarcane seedlings, causing the sugarcane seedlings to be shaded and lacking sunlight. There will be seedlings and seedlings, which will affect the sugarcane production.
3. Choose suitable sugarcane varieties. It is best to use sugarcane varieties with high yield and narrow leaves, slow growth in the early stage, fast growth in the late stage and many tillers.
4. Reasonably close planting and applying enough base fertilizer. Peanut small spacing 35 cm, 45 cm large spacing, 9000-9500 mu planting hole, two kinds of each hole; high farmyard manure applied per acre 2500 kg, 30-40 kg standard nitrogen fertilizer, superphosphate 40 60 kg potassium sulfate 10-15 kg of ash or 100-150 kilograms. Sugarcane spacing 75-100 cm, 3000 pairs of seed per acre sugarcane shoots. Sugarcane base fertilizer is mainly organic fertilizer, supplemented by inorganic fertilizer, namely 2500 kg of high-quality soil and fertilizer, 100 kg of superphosphate, 25 kg of urea, 50 kg of compound fertilizer, 3 kg of carbofuran, mixed application in cane ditch for sugarcane base fertilizer .
5. Strengthen field management. After the harvest of spring peanuts, the sugar cane is reapplied to the quick-acting fertilizer, applying 25-40 kg of urea per acre, and furrowing the soil, weeding, and burying the bean vines and residual bean roots and litter leaves into the cane head. When the soil moisture is insufficient, it is necessary to irrigate the water to promote sugarcane tillering, attacking the number of seedlings, and early birth.
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