Early sowing of peanuts is conducive to prolonging nutrient accumulation during the vegetative growth period. However, early sowing has to face many unfavorable factors. So how to grasp the best sowing time of peanuts and how to grow peanuts?
First, the peanut planting method:
1. Seeding method. Seed sowing and film covering sowing. According to the mode of operation is divided into artificial on-demand and mechanical sowing.
2. Seeding depth. It is advisable to sow about 5 cm in general peanuts. It is necessary to grasp the principle that “the stem is not deep, the wet is not superficial,†and the soil is less viscous, and the land of sand or sand is deeper. The deepest cultivation can not exceed 7 cm in depth, and the shallowest can not be less than 3 cm.
3. Crackdown after sowing. Post-suppression after sowing is a successful experience in peanut seedlings to ensure drought resistance. After repression, not only can the evaporation of soil moisture be reduced, but also the seed can be brought into close contact with the soil, promoting the increase of the moisture in the lower layer of the soil, preventing the seeds from drying out, and facilitating seed germination and seedling emergence.
Second, the best planting time of peanuts:
1. Seeding period for spring sowing cultivation. The average ground temperature of ≥15°C at 5cm in the continuous cultivation of Peanuts in the spring on the open season is suitable for sowing, and the appropriate time for planting in Liao, Jing, Sui, Lu, Yu, Subei and Yubei is from mid-April to early May ( "Rain" to "Everyday").
2. The sowing period of spring sowing film covering cultivation. Due to the temperature-increasing and heat-retaining effect of the plastic film, the average ground temperature at 5cm over the same period was 2.5°C higher than that of the uncovered plant. Therefore, when the average ground temperature at 5 cm at 5 cm before sowing reaches 12.5°C, it is the appropriate time for seeded peanuts. For example, the sowing of peanuts planted in central and southern China in Henan, Hebei, Shandong and Shaanxi is generally focused on April 10-25.
3. Summer peanut sowing date. The sowing date of Beijing, Fujian, Shandong, Henan, northern Jiangsu and northern Fujian, Maitaoxia, and peanuts in direct seeding is appropriate from mid-May to mid-June.
With the expansion of wheat fields, spring peanuts have gradually decreased. In recent years, wheat peanuts have received attention. Wheat sets of peanuts, interplanting period should be determined depending on the growth of wheat, in order to strive to gain the peanut growth period, while reducing the impact of wheat on the shading of peanut seedlings.
According to research conducted by Japan, when the wheat is harvested, the light between the wheat rows is 60% of the natural light. Wheat peanuts can be grown at the same time as the spring sowing. When 40%, it can be interplanted 40 days before the wheat harvest. If it is only 25%, it can be harvested. Interplant 20 days before.
Shandong Agricultural University and Linyi City Academy of Agricultural Sciences have demonstrated that in the high-yield wheat fields above 350 kg/mu, the number of acres per mu is around 300,000, and the light at the bottom of the wheat row is less than 10% of natural light, and the intercropping of wheat in the first 20 days is high. After wheat is harvested for about 5 days, the peanut seedlings will adapt to the open environment and receive sufficient light. When the seedlings are more robust, they will be cultivated and extirpated. After the harvest, they will not produce more crops.
2 to 3 days before sowing, the shelled peanuts of the preserved seeds are to be dried, shelled after drying, and seed dressings containing fungicides are used for seed dressing to eliminate differentiated nutrition of seeds and sowing after drying. 2 to 3 seeds per hole, sowing depth of 5 cm is appropriate, soil quality, good soil moisture, may be appropriate shallow, sandy soil, poor soil moisture, may be appropriate deeper. It is suggested that the mulching area for spring peanuts should be covered with mulching, and suitable early sowing can be conducted to increase peanut production. Summer peanut planting areas can be selected for interplanting, sowing in advance and increasing production.
Grasping the cultivation method and the best planting time of peanuts can not only prevent the problems caused by the planting of peanuts, but also effectively increase the output of peanuts.
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