Two-stage seedling culture method of water chestnuts

Abstract

The invention provides a two-stage seedling culture method of water chestnuts. The method comprises the steps as follows: firstly, seed water chestnuts are used for germination, cladodes put forth after emergence, 15-20 first-stage seedlings are obtained from each seed water chestnut, the first-stage seedlings are transplanted in a seedling raising field, stolons put forth from the obtained seedlings to form clusters, ramet seedlings are obtained, the number of ramet seedlings of each seedling is 15-60, the ramet seedlings of the seedlings in the seedling raising field are lifted and taken outof the field, and then, second-stage seedlings are transplanted in the field. The propagation coefficient of the water chestnuts is greatly increased, and the requirement of second-stage seedlings for one mu of field can be met only by use of 8-15 seed water chestnuts, the bed width of a seedbed in cultivation of first-stage seedlings is 1-1.2 m, space is saved, management is facilitated, healthycladodes putting forth from the seed water chestnuts are used as the first-stage seedlings, the quality of seedlings is improved, root systems of the second-stage seedlings are soaked by 250 g / L azoxystrobin suspending agent or 10% difenoconazole water dispersible granules for 12 h to prevent stem blight of the water chestnuts, so that the water chestnuts have enhanced disease resistance after being transplanted to the field, water chestnut corms grow uniformly, and the large fruit rate and yield are high.

Description

Technical field [0001] The invention belongs to the technical field of seedling raising, and specifically relates to a two-stage seedling raising method for water chestnuts. Background technique [0002] Water chestnut, also known as horseshoe, is a kind of aquatic vegetable crop for medicine and food. Its product organ is bulb. Water chestnuts are cultivated by transplanting seedlings. In the traditional water chestnut seedlings, the bulbs are used for seeding directly, and the fields are planted when the bulbs germinate and the seedling height is about 20 cm. This kind of seedling raising method takes a short time to grow seedlings, but the amount of seeds used is large, more than 1,000 bulbs (about 20kg) are needed per mu, and the obtained water chestnut bulbs are not uniform in size, and the average water chestnut bulb weight and yield per mu are low. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a two-stage seedl...

AI Technical Summary

Problems solved by technology

This seedling raising method has a short time for raising seedlings, and it can become seedlings at one time, but the amount of seeds used is large. More than 1,000 bulbs (about 20 kg) are needed per mu, and the obtained water chestnut bulbs are uneven in size, and the weight and yield per mu of the average water chestnut bulbs are low.