According to the ecological conditions such as soil and climate and the needs of the mayor/market, select high-quality special varieties suitable for food processing, such as high oil, high uric acid and high protein, and gradually meet the differentiated needs of usefulness, eating, processing and export. In the fertile fields above the middle of Huang-Huai-Hai, when planting peanuts in spring or mulching peanuts in spring, we should choose high-quality special Chinese varieties with a breeding time of about 65438 0.25 days. In barren land or coastal areas, we should choose high-quality special small and medium-sized fruit varieties with a growth period of about 125 days. Small and medium-sized fruit varieties with early maturity within 125 days are selected in the mountainous areas of northeast China, and those with early maturity within 1 15 days are selected in areas with high latitude, frost-free period and low accumulated temperature. Pearl and soybean varieties with growth period of about 120 days were selected for spring sowing peanuts in southern mountainous areas. Spring-wave peanuts in the northwest mountainous area of southern Xinjiang choose Chinese varieties with a growth period of about 125 days, while spring-wave peanuts in northern Xinjiang choose Chinese varieties with a growth period of less than 120 days.
When selecting varieties, we should choose the corresponding star varieties according to the main local natural disasters and biological disasters. In particular, high-altitude varieties should be selected in the pathological area of Qingma. For example, the original groceries 9 102, Zhonghua 2 1, Zhonghua 6, Quanhua 55 1, and Guangdong Oil 40. Rotten fruit bottles can choose varieties with strong disease resistance. For example, Zhonghua 6, Osmanthus fragrans 1026, Win Grocery 9 102, Oxidation 9, Aviation 2 and so on. Mountain areas with high level of mechanized production have good consistency of maturity and strong toughness of fruit stalks, which are suitable for mechanized harvesting. For example, Yihua 9326, Yuan grocery store 9 102, Huayu 33, Zhonghua 16, Zhonghua 2 1 etc. According to the mayor/market demand, peanut varieties with high uric acid can be planted everywhere. Yihua 37, Yihua 65, Yihua 1 1, Xuhua 16, Xuhua 18, Xuhua 19, Xunong 6, Hua 9 17, and flower cultivation 9/.
For five consecutive days of spring sowing, the temperature was above 17, that of small-sized varieties was above 15, and that of peanut varieties with high uric acid was above 19. Plastic film peanut seeder is 7 ~ 65,438+00 days earlier than open field peanut. Huang-Huai-Hai usually lasts from late April to early May, with Northeast Mountain in the middle and late May and Northwest Mountain in the middle of May. The sowing temperature of southern pearl bean flower should be above 12, and the sowing of "cold rice and warm beans" should be sunny, while the sowing of high-oil peanut varieties should be late.
Generally speaking, in spring, two radishes with large grain varieties sow 0.8 ~ 1.000 holes, two radishes with small grain varieties sow 0.9 ~ 1. 1.000 holes, and a single radish sow1.4 ~1.7000 holes. The plots with good fertilizer and water conditions should be sparse, and the plots with thin drought conditions should be densely planted. Third, do a good job in seed treatment. Peeling before sowing 10 ~ 15 days, peeling before peeling, drying in the sun for 2 ~ 3 days, removing moldy, damaged and germinated seeds, grading according to seed size, preserving seeds, and sowing in stages. The seeds peeled mechanically must undergo germination test, and the appropriate sowing amount must be determined according to the germination rate.