1. Scientific selection and quality improvement
Huanghuaihai production area: spring-sown peanuts or spring-sown peanuts covered with plastic film, it is better to choose high-quality special medium-large fruit peanut varieties with a growth period of about 125 days, and wheat ridge interplanting peanuts should choose high-quality special medium-large fruit with a growth period of 125 days or less Peanut varieties, summer direct peanuts should choose high-quality special-purpose peanut varieties with a growth period of about 110 days.
Northeast production area: select medium-early large-fruit varieties with a growth period of 120 to 130 days, and select early-maturing small-fruit varieties with a growth period of less than 120 days in areas with high latitudes, short frost-free period and low accumulated temperature.
2. Sow seeds at the right time to improve quality
One is to determine the appropriate sowing date. In Northeast and Huanghuaihai production areas, the sowing date of large peanuts in spring and open fields should be controlled for 5 consecutive days. The ground temperature of 5 cm should be stable above 17℃, and the small peanuts should be stable above 15℃. Generally, the peanuts can be covered with plastic film from mid-late April to early May. Early to mid-April; the suitable sowing date for wheat ridge interplanting peanuts is 15-20 days before wheat harvest, generally in mid-to-late May; summer direct seed peanuts should be prepared in time after wheat harvest, so as early as possible, and the sowing date is generally no later than June 20th.
For the spring sowing of peanuts in southern producing areas, the ground temperature of 5 cm should be stabilized above 12 ℃, and the seeds should be sown in the cold tail and warm head.
The second is to determine the appropriate sowing rate. In general, large peanuts are sown in spring with double seeds of 8000-9500 holes per mu, small peanuts are sown 9000-10000 holes per mu, and single seeds are sown 14000-15000 per mu; in summer, large peanuts are sowed 15000~17000 per mu per mu, and double peanuts are sown per mu. 9500~12000 points.
The third is to do a good job of dressing seeds with medicine. Peel the husk 10-15 days before sowing, and sown with the husk for 2 to 3 days before peeling. Pick out the moldy, damaged, and germinated seeds, and store them according to the size of the seeds. Choose a suitable agent for seed dressing. The seed dressing should be even, and the seed coats can be sowed when the seed coats are dried. This can effectively prevent soil-borne diseases such as root rot, stem rot, crown rot, and underground pests such as grubs.
3. Scientific fertilization and watering to promote development
Acidic soil can be added with physiologically alkaline calcium-containing fertilizers such as lime; continuous cropping soil can be added with lime nitrogen and biological bacterial fertilizer; peanut rhizobia fertilizer can be added to lower fertility gravel sandy soil, coarse sandy loam soil and stubble soil to increase Nodule nitrogen fixation ability; increase the application of biological potassium fertilizer in peanut high-yield fields to promote effective release of soil potassium.
At the same time, spring peanuts and summer peanuts sown at foot moisture generally do not need to be watered during the seedling stage. Proper drought is conducive to root development, improving plant resistance to drought and waterlogging, and is also conducive to shortening the first and second internodes and making it easier to pierce the fruit needles. , Increase the rate of full fruit; drought occurs in the seedling stage of wheat peanuts, watering should be timely to protect the seedlings.
Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
Hydraulic Power Unit,Hydraulic Pump Unit,Hydraulic Power Station,Power Unit,Hydraulic Poppet Valve,Hydraulic Pilot Valve
Changzhou Satidi Import and Export Co., Ltd. , https://www.guanjiejts.com