Rape Seedling "Three Passes"
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The long sowing time of rapeseed and the elasticity of its growing period are now a good time for sowing and raising seedlings. Varieties should be selected for high-quality and low-yielding hybrid rapeseed, with Zhongyouza No. 4 and No. 2 as good. Zhongyouza 4 has the characteristics of short growth period, compact plant type, low branching nodes, concentrated scabs, and consistent ripeness of upper and lower pods. It is currently an excellent high-yield product. The key to planting seedlings is to focus on the “three levelsâ€: First, apply basic fertilizers to complete seedbeds. More than 2,000 kg of high-quality farmyard fertilizer per acre, 40 kg of compound fertilizer for rapeseed, and 200 to 250 grams of US “holding boron†are spread evenly; the seedbed is used for deep plowing to make the soil finely chopped and the tricuspid soil is opened. Flat car surface, to create a good foundation conditions for early growth and rapid development of rapeseed. The second is timely sowing, fine sowing. The high-yield sowing date of Zhongyouza 4 is from mid-late September to early October. The yield per mu can reach 200 kilograms. The seeds and sifted fine soil can be mixed and robbed to spread. The seeding rate per acre seedbed is about 500 grams. Paddy fields can be planted on rice seedlings, seedlings with 4 to 5 seeds in one hole, and a handful of soil fertilizer to cover the seeds. The third is to strengthen management and promote strong seedlings. After emergence and time seedlings, weeding, to inferior, acres of pouring 15 to 20 water feces to promote seedlings, and at the same time pay attention to control of aphids, do a good job of seedling management, timely planting and transplanting.