Ramie root system is well developed, with thick straight roots and 3 to 7 large lateral roots. The straight roots are as deep as 2 to 4 meters, and the lateral roots are flat up to 1.5 to 2 meters. The ability to adapt to the soil is stronger, and higher economic benefits can be obtained by cultivation on dry and thin ground. The use of ramie series hybrids can significantly increase production, such as proper management, per mu up to 250 to 300 kg.
First, plastic film coverage: see (ramie film covering cultivation techniques).
Second, sowing
1, sowing time: When the ground temperature rises to about 5 °C sowing, Shandong is generally in mid-March.
2. Seeding method: The density of the dry land in the mountains should be appropriately increased. The average row spacing is from 90 to 110 cm, the plant spacing is 60 to 80 cm, and the density is 800 to 1500 plants/mu. 2 to 3 seeds per hole, covering the depth of 4 to 5 cm.
Third, check seedlings, make up seedlings, Dingmiao
Ramie is easy to survive in the seedling stage (before 3 true leaves). It is found that seedlings need to be transplanted and transplanted in time. Dingling seedlings were carried on 3 to 4 true leaves, leaving 1 plant per hole. Dingmiao too late to form weak seedlings, affecting production.
Fourth, fertilization Hill dry soil is generally relatively barren, adequate fertilization can significantly increase production.
1. Base fertilizer: Basal fertilizer is generally 15 kg of urea, 10 kg of diammonium phosphate, 7 kg of potassium sulfate, and 1000-2000 kg of farmyard manure.
2. Top-dressing: The fertility of the soil in the dry fields of the mountains is generally poor, and the top-dressing is best performed twice. The first time in the bud stage, the second time when the main spike matures. Each time Mushi NPK fertilizer 10 to 15 kg.
Fifth, the whole technical castor is cultivated in the dry land, the plant type is generally more compact, ventilation and light transmission are better, the pruning is relatively simple. Generally, the first flower spikes are budded before budding, and 2 to 3 first-level branches are reserved under the flower, and the remaining branches are all erased. Afterwards, depending on the growth of the plants, the number of branches left on the second, third, fourth, and fifth branches was determined.
6. 80% of the pods on the harvested ear are harvested when the tan is brown, and harvesting should not be premature, so as not to affect the yield and quality. After harvesting, it can be bagged and sold in a timely manner when it is air-dried and threshed, and the moisture content drops below 9%.
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