How to plant open rapeseed in early spring

Early planting of rapeseed in early spring is very important, sowing early, affected by the outside temperature conditions, it is easy to cause cold damage, rooting, rot, twitching phenomenon. Sowing too late will result in delayed listing, poor product quality (mainly due to high temperatures), and reduced economic income. Open field production is generally planted in late March and all live broadcasts are used.

1. Select good varieties: To select high-quality, disease-resistant, high-yield, and tolerant varieties, apply enough base fertilizer.

2. Seed treatment: Before seeding, put the seeds in a well-lit place to dry for 3 to 4 hours. Then put the seeds in warm water at 50°C and add new high-fat film (increase germination rate) to soak seeds for 20 to 30 minutes and then at 20°C. Soaking in water at ~30°C for 2 to 3 hours. After drying, it can be directly sowed or placed at 15°C~20°C for germination and 24 hours for budding.

3, fine sowing: generally sowing in late March, acres of about 350 grams. Prior to sowing, depending on soil moisture, water will be cultivated and sowed until the water seeps. When sowing, 1 meter wide open 5 trenches, 1.5 to 2 cm deep, the seeds are evenly sown in the ditch.

4. Field management: When the two true leaves are unfolded (2 leaves and 1 heart), the first time the seedlings, 4 leaves and 1 heart, the second time the seedlings (set seedlings), the seedling distance of 8 to 10 cm, per acre Liu Miao 4 About 10,000 lines. Less water is needed during the seedling stage. Normally, no drought or water is needed. After the seedlings are completed, they should be properly watered and fertilized during the growth period. Spraying strong stalks at a proper time can make the stems of the plants stout, with thick leaves, and fresh leaves. The plants are lush and the natural taste is strong. At the same time, it can increase the ability to resist disasters, reduce the amount of pesticides and fertilizers, and reduce residual poisons. Harvested in time, spring rapeseed exposed rapeseed can be harvested and marketed about 60 days after sowing. In the morning, the city will affect the production, and too late will affect the product quality.

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