High-yield cultivation method for sweet potatoes

Abstract

The invention discloses a high-yield cultivation method for sweet potatoes. The high-yield cultivation method comprises the following concrete steps: I, choosing an improved variety: the improved variety is the key to produce the sweet potatoes at high yield; according to the use and the sale, the improved variety is chosen in the light of local conditions, and especially, the new variety is particularly obvious in yield-increasing effect; II, cultivating strong seedlings: the roots of the strong seedlings are numerous and developed, after being planted, the seedlings survive quickly, and hair roots bear the sweet potatoes fruitfully, which lay the foundation for full stands, strong plants, numerous potatoes and big potatoes; the standards of the strong seedlings are shown as follows: thick and strong stems, short internodes, fat blades and moderate sizes, with the features of the improved variety, no diseases, plenty latex of cuts, 50cm to 70cm of vine length and more than 0.5cm of stem thickness; III, transplanting in real time; IV, performing scientific management; V, harvesting the sweet potatoes when potato leaves start to turn yellow and the air temperature is below 20 DEG C, wherein the sweet potatoes require to be harvested before the end of October, and potato tubers should be prevented from being damaged by digging during harvesting. The high-yield cultivation method disclosed by the invention has the advantages that seeds are saved by more than 1 / 3, the buried section number of seedling vines is large, covering of soil is slight, the soil temperature is high, and after ventilation, the survival rate is high.

Description

technical field [0001] The invention relates to the technical field of planting, in particular to a high-yield cultivation method for sweet potatoes. Background technique [0002] At present, the conventional field sweet potato cultivation method mainly adopts the direct insertion cultivation method of one leaf and one node, that is, the potato tendrils are arranged, divided into two to three leaf nodes and cut into sections, leaving the uppermost leaf in each section, and cutting the lower leaves. When planting, the part with leaves on the ground is about 3-5 cm, and the remaining parts with leaf nodes are all submerged in the ground. The first is that the amount of seeds used is large, and the second is that the sweet potato seedlings have many wounds, are susceptible to infection, have a low survival rate, slow tree growth, and inconsistent knot positions of the sweet potato, resulting in inconsistent size of the sweet potato, which seriously affects the yield. Contents...

AI Technical Summary

Problems solved by technology

In this way, the amount of seeds used is large, and the second is that the sweet potato seedlings have many wounds, are susceptible to infection, have a low survival rate, slow growth, and inconsistent knot positions, resulting in inconsistent tuber sizes and seriously affecting production.