Cassava is a shrub perennial crop, root tuber of euphorbia plants, mainly distributed in the tropics, now widely planted in south China, so, how to plant cassava? What should I pay attention to when planting cassava?
Turn the soil in depth: a month before planting the cassava, turn the ground into a plow and let the soil fully weathered. When planted, put 250 — 300 kilograms of phosphate fertilizer on the compost of compost and livestock manure compost.
2. Select good varieties: must choose varieties with more sweet potatoes, less toxicity and high yield. The stem of middle and lower part without disease, insect and injury was selected as the stem.
Cassava planting
3. Seedling treatment: cut the seedling 33 cm long before planting, and cut the inclined mouth 3-6 cm at the lower end, which is shaped like a duck bill.
On the two sides of the stem above the oblique orifice, the stem skin was cut every two intersections, and the cut width was 1/4 of the circumference of the stem, 2 cm long.
In the next planting, the method of controlling the fixed node growth of the axillary buds was adopted. Except the axillary buds with three nodes at the top of the stem, the axillary buds at the other nodes were removed and replaced with oblique insertion to be inserted horizontally, which could control the growth of an ideal healthy host stem plant.
4. Phased targeted fertilization: when the seedling grows to 12 — 15 cm after planting, *** times of fertilization can be applied.
In addition to proper application under the root of seedling, it should be mainly applied around 40cm from the seedling to promote more rooting and rapid extension. When the potato seedling grows to 50 centimeters, apply fertilizer the second time, the mu USES high quality fecal water 40 — 50 Dan to mix urea 8 — 10 kilograms to drench, apply fertilizer to be apart from plant 50 — 60 centimeters around, make potato root along surface soil to spread. When the potato seedling grows to 70-100cm, choose to top it at noon on a sunny day and remove the growing point 3-5cm. Next the mu USES the dung water 60 to add the urea 10-12 kilograms to drench, causes its how long to branch.
5. Heavy fertilizer on loose soil in autumn: after entering autumn, select sunny days, open the soil on one side of the base with a li hoe (do not damage the roots) to expose the roots, let the soil be exposed for 4-5 hours, and then use 30 kilograms of ammonium carbonate and 100 kilograms of phosphate to mix the soil into the cassava base after 12 hours, and then cultivate the soil.
In this way, it can make cassava leaves in late autumn, extend the growing period, make cassava grow fast and long, with smooth skin, good quality and high yield.