Potato expanding propagation method

Abstract

The invention discloses a potato expanding propagation method. The potato expanding propagation method comprises the measures of potato seed seedling growth, seedling breaking-off and transplantation, soil preparation and field management. The method comprises the following steps of cultivating short strong buds by using potato seeds; selecting loam which is flat and facilitates irrigation and drainage, wherein solanaceae crops such as potatoes, hot pepper and eggplants are not planted in the loam for over two years; sowing seeds in the last ten-day period of March; manufacturing a potato bed, wherein the width of the potato bed is 90cm, and the depth is 20cm; in the seed sowing process, enabling tubers to meet the conditions that the umbilical region of each tuber faces downwards, the top of each tuber faces upwards, and spacing between every two potatoes is 3cm; performing seedling breaking-off and transplantation when the length of seedlings reaches 3-5cm and the root length is about 5cm; digging a pond in the transplantation process, wherein the line spacing is 50-53cm, the row spacing is 29-33cm, and the depth of the pond is 13-15cm; planting the seedlings which are broken off in the pond in a single plant form, burying white parts and roots into soil, and applying a sufficient amount of root fixing water; when new roots grow within 10-15 days, switching a growth mode into a normal farmland management mode. Compared with a potato-cutting seed-sowing mode, a seedling breaking-off transplantation expanding propagation mode has the advantages that the cost is reduced by over 30 percent, and the propagation path of various sources of diseases from which the potatoes suffer in the seed cultivation process are avoided to the greatest extent.

Description

technical field [0001] The invention relates to a method for multiplying potatoes. Background technique [0002] The traditional propagation method of potatoes is to choose whole potatoes with many buds as seed potatoes, and sow them in two ways: whole potato sowing and cutting into pieces. Whole potato sowing is a planting method in which the seed potatoes are not cut with a knife after they are germinated, but are planted in the ground as a whole. One is to use a large amount of seeds, 250 kg of seed potatoes per mu; Only one seed potato can grow. Cutting sowing is to cut a potato into 2-3 pieces for seeding, which can increase the reproduction coefficient by about 3 times. However, because potatoes have incisions, they are easy to lose water, and are also easy to be infected by bacteria, resulting in rotten seeds and lack of ponds. In addition, cutting and sowing is an important way to spread the disease. When cutting a potato with germs, if the knife is not handled i...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to disclose a potato multiplication method to solve the problem that the whole potato is cut into pieces to take the seed potato, which requires a large amount of seed potato and wastes the potato