Traditional Culture Encyclopedia - Photography major - A little knowledge of sunflower
A little knowledge of sunflower
Alias: Paeonia suffruticosa and Portulaca grandiflora.
Family and genus: Portulaceae, Portulaca.
First, the planting method of sunflower seeds
1, planting
The planting mode of sunflower seeds in Sichuan is about September ~ 10. Clean up the land before sowing, and then open a ditch with a depth of 1.3 meters. A horizontal ditch with a row spacing of 30 cm and a depth of 4 ~ 6 cm is opened in the ditch, and the sowing distance is about 10 cm, so that the ground is flat and the soil is loose. The seeds should be made of plant ash mixed human and animal manure, with 5 ~ 6 seeds per mu. When sowing, first apply human excrement in the ditch and sprinkle seed ash evenly.
Step 2 manage
The management method of seed propagation is to water the seedlings once when they grow to a height of one centimeter. When the seedling height is 3 ~ 4 cm, it should be evenly distributed and replanted. Leave a seedling every 3 ~ 4 cm, and bring soil when replenishing the seedling. After the seedlings are fully cultivated, intertillage and weed once, and carry out topdressing treatment. If the plants propagate independently, they should be pulled out when they grow new seedlings after planting, and only need to pull up the grass and loosen the soil after topdressing once, topdressing once after harvesting in September for wintering, and topdressing once in June at 5438+065438+ 10.
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