Winter wheat producing areas can't sow the spring wheat fields of the winter wheat because of the late harvest of the former crops, and the spring corn can be used as the planting method of summer sowing peanuts. To increase the utilization of soil and light energy and make full use of the growing season, timely planting of winter wheat plots can also be reserved for maize intercropping and interplanting between maize and peanut. In this way, in addition to intercropping and interplanting with peanuts, it can also be planted with soybeans and other crops. 1. Planting methods (1) Planted in 1.32 meters area, with 2 rows of corn in each row, 15 to 20 centimeters apart, 2 rows of groundnuts in the middle of the open space, peanut spacing of 40 centimeters, early spring sowing of spring corn, before the end of July reward. Interplant peanuts from late May to early June, with 1 to 15,000 holes per acre and 2 holes per hole. The best sowing time for peanuts, one should consider not sowing too early, so as to avoid early sowing, corn shade heavy, high seedling rate of peanuts, seedlings are not robust, have an impact on the yield; two should consider sowing and not late, because peanuts The growth period is short, the vegetative growth and reproductive growth overlap, the development is difficult to coordinate, the planting is too late, the pods are numerous, and the yield is reduced. (2) When sowing winter wheat, take 1.32 meters along the way, wheat covers an area of ​​60 centimeters, and sows 4 to 6 rows of wheat. Spring maize is planted on reserved blank ground in early April of the following year, with a 120-cm row spacing and small row spacing. About 13 centimeters, 20 centimeters planting pitch angle. Immediately after the harvest, the wheat was cut off and the soil was sown and the summer peanuts were sown on the wheat bran (in the corn line). 2, cultivation techniques (1) species selection. Both corn and peanuts should use early maturing varieties. Maize should use the blade to make a light shade on the ground, such as Shanjiao 36, Luyuandan 4 and Dandan 10, etc.; more suitable peanut varieties are: 793, Hua 28, Luhua 3, RH321 Wait. (2) increase fertilization material. Before planting corn and peanuts, sufficient base fertilizer should be applied, and interplanting corn should be given enough base fertilizer to strive to maintain seedlings. Because peanuts require more phosphate, 15-25 kg of superphosphate should be applied per acre at the time of sowing. (3) Strengthen field management 1 During the symbiosis of corn management, corn and peanuts should be carefully selected before sowing, and full and healthy grains should be used as seeds. Combining seedlings with post-emergence maize seedlings, light application of Miaofei (fertile fertility, sufficient base fertilizer may not be applied), loose soil weeding, promote early-onset, and at the same time pay attention to the defense of tigers. 3 to 4 leaves in time when the seedlings to prevent the seedlings squeeze seedlings, the formation of tall seedlings, promote the individual development of corn seedlings robust. When jointing the corn, see the seedlings apply good jointing fertilizer, cultivate strong stalks, and build a high-yield shelf. After the corn has been pumped, a panicle fertilizer is reused. In the late stage of corn filling, the bottom leaves must be removed in time to initially improve the ventilation and light transmission conditions of the peanuts. When the yellow leaves of the corn ear are yellow, all the tops of the upper two leaves of the ear are cut off. , to further improve the ventilation and light conditions of peanuts. After corn is harvested, the straw must leave the field as soon as possible to improve the ecological conditions of peanuts, promote robust growth, and achieve early maturation and high yield. 2 Peanut management during symbiosis. The early flowering season applies fertilizer in time and promotes multiple results. Generally, 4 to 5 kg of urea is applied in Mushi, and the amount and time of fertilizer application should be strictly controlled according to the local conditions and the length of the local frost-free period. Avoid over-fertilization or too late, resulting in late maturity, and the rate of foliation increase, which will affect the yield increase. In view of the characteristics of short intercropping of summer peanuts, ventilation, and poor lighting conditions, the cultivation measures should be based on "early": first, peanuts should be managed early to promote early emergence of seedlings; second, early management of corn should be used to improve peanuts. The ventilation and light transmission conditions are important measures to seize the high yield of peanuts.
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