Planting technology of purple sweet potatoes

Abstract

The invention relates to a planting technology of purple sweet potatoes, in particular to various measures for planting purple sweet potatoes on the aspects of purple sweet potato seed selection, fertilization, seedling culturing, field management and the like. The planting technology comprises the following steps of: selecting Japanese king purple sweet potatoes serving as seeds; taking the seeds out of a cellar when the temperature is about 15 DEG C in the middle of February for seedling culturing; transversely arranging the seeds on a seedling bed continuously at the line space about 5 centimeters; covering with fine soil; spraying water onto the soil with a sprayer; covering with a plastic film; preserving moisture and heat; when seedlings grow to over 20 centimeters, inserting the seedlings into a field; performing deeply digging and ridging on a sun-exposed plot with a high relief, wherein the ridge distance is generally 60-70 centimeters, and the ridge height is 25-30 centimeters; performing top application once to twice according to the soil fertility; at the tuber expansion stage, keeping the ground wet and keeping the soil moisture at about 70-80 percent; and at the field growing period, selecting low-toxicity chemical pesticides in time to prevent and control pests such as aphids, palaearctic sweet potatoes, prodenia lituras and the like.

Description

technical field [0001] The invention relates to the field of planting, and specifically introduces various measures for planting purple sweet potato from the aspects of purple sweet potato seed selection, fertilization, seedling raising and field management. Background technique [0002] The cultivation method of purple sweet potato is basically the same as that of ordinary sweet potato. However, according to the sales direction of purple sweet potato, the cultivation methods are slightly different. The traditional cultivation methods cannot meet the market demand well, so purple sweet potato cultivation lacks a scientific method to adapt to the market. Contents of the invention [0003] 1. Select the seeds [0004] The Japanese Purple Sweet Potato King is currently the best variety of purple sweet potato. The Japanese Purple Sweet Potato King that is going to be bred needs to be raised on the ground for a few more days to make the potato pieces mature. To kill germs, ce...

AI Technical Summary

Problems solved by technology

However, according to the sales direction of purple sweet potato, the cultivation methods are slightly different. The traditional cultivation methods cannot meet the market demand well, so purple sweet potato cultivation lacks a scientific method to adapt to the market.