Management guidance for early planting of Polygonum multiflorum
I. selection and preparation of land
Chuanwu has a strict choice of soil, and should choose sunny slopes, high terrain, sufficient sunshine, deep soil layer, loose, fertile, and convenient places for drainage and irrigation. Neutral oil sandy soil, white sandy soil and ash-coated soil are the most suitable for cultivation, but continuous cropping should be avoided. The previous stubble had better be potato and cornfield, and rotation should be carried out for up to two years, otherwise it is easy to produce diseases and seriously affect the yield. Chuanwu has strict requirements on soil preparation. After potato and corn harvest, the Kang soil should be ploughed in time to fully ripen the soil, increase fertility, reduce diseases and insect pests, apply base fertilizer before sowing, apply compound fertilizer 30 murals 60 kg per mu, and plough twice, so that the soil is fully fine and loose, and then make a border of 2 meters wide and 20 centimeters high, and open drainage ditches in the field to achieve three ditches.
Second, sowing seeds
Polygonum multiflorum is mainly propagated by tuber root. The size of tuber root is related to the yield. It is appropriate to guide growers to sow root tuber with 150m / kg, sowing amount 100-120kg/ mu, ditch sowing in early or mid-November, ditch depth 18m / mu, root upside down, which is one of the high yield measures. Covering soil after sowing is suitable for 15000 plants per mu. If it is too dense, it will cause serious leaf powdery mildew The output is low, the quality is poor, if too thin, then the output will be low.
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