Potato base seedling overwintering greenhouse and method for utilizing greenhouse to enable potato base seedlings to overwinter

Abstract

The invention discloses a potato base seedling overwintering greenhouse and a method for utilizing the greenhouse to enable potato base seedlings to overwinter. The overwintering greenhouse is formed by a protecting greenhouse, an outer overwintering greenhouse and an inner overwintering greenhouse which are covered from outside to inside. Soil heating lines are laid on the ground of the outer overwintering greenhouse and the ground of the inner overwintering greenhouse respectively. The overwintering method comprises (1) selecting potato plants which are excellent in varieties and good in growth vigor in potato fields before first frost in winter, cutting off robust vines at the top ends of the selected potato plants, planting the vines in seedling culture cups, and forming base seedlings; (2) transferring the base seedlings to the outer overwintering greenhouse and the inner overwintering greenhouse of the overwintering greenhouse since the middle ten days of November, controlling lowest temperatures in the outer overwintering greenhouse and the inner overwintering greenhouse well in a staging mode, and spraying an antifreezing agent; and (3) planting the robust base seedlings in the overwintering greenhouse together with culture soil in the seedling culture cups into an ordinary greenhouse since the first ten-day period of February next year, and performing plantation; and planting the base seedlings in the overwintering greenhouse together with the culture soil in the seedling culture cups into fields, and performing open plantation.

Description

technical field [0001] The invention relates to overwintering equipment for crops and a method for overwintering crops using the overwintering equipment, in particular to a greenhouse for overwintering potato base seedlings and a method for overwintering potato base seedlings using the greenhouse. Background technique [0002] Potato crops (including sweet potato, sweet potato, konjac, etc.) have the characteristics of high yield, stable yield, wide adaptability, strong stress resistance, drought tolerance, barren tolerance, and less pests and diseases, and occupy a large share in agricultural production. The traditional planting of potato crops is to select seed potatoes from the potato blocks harvested in the previous year, and the selected seed potatoes are planted in the late spring (due to the weak cold resistance of potato crops, there is a dormant period after storage, and the planting is mostly carried out in the frost-free season. ) are planted in the field in a nak...

AI Technical Summary

Problems solved by technology

The traditional planting of potato crops is to select seed potatoes from the potato blocks harvested in the previous year, and the selected seed potatoes are planted in the late spring (due to the weak cold resistance of potato crops, there is a dormant period after storage, and the planting is mostly carried out in the frost-free season. ) are planted in the field in a naked way. This planting method has the following main disadvantages: 1. The seed potato is selected from the potato cubes, and a large number of potato cubes are wasted due to reproduction, and the planting cost is high; 2. The seed potatoes in the field The potato seedlings are grown based on the potato cubes harvested in the previous year. The potato cubes carry certain viruses, and the propagated potato seedlings are susceptible to disease and then degenerate. The survival rate and survival quality are not high; 3. The potato cubes are in the field Germination and growth can only be achieved after a dormant period. When the production seedlings are on the market and planted, they miss the favorable growth conditions of good sunshine and large temperature difference between day and night in the first half of the year. not tall

However, the primary consideration of this technology is how the potato plants and vines can survive the cold winter. The success of the potato plants and vines overwintering directly determines the feasibility of the technology. Although various methods of potato plants and vines overwintering are disclosed in the prior art , such as the "Potted Planting Method for Overwintering Potatoes" disclosed in Chinese patent literature (publication number: CN 101194592A, date of publication: June 11, 2008) and "new method for overwintering seedlings of sweet potato stems and vines in greenhouses" (publication number: CN 101305692A, Public date: November 19, 2008), but these methods lack special overwintering cultivation equipment and cultivation measures are unreasonable, the overwintering cost of potato plants and vines is high, the reliability is poor, potato plants and vines are easy to freeze to death, and can only be used for small batches Potato strains and vines can survive the winter, and batch and large-scale cultivation of potato strains and vines cannot be effectively realized, which has certain limitations.

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