A kind of sweet potato seedling cultivation method
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A sweet potato and aeroponic technology, applied in botany equipment and methods, cultivation, culture medium, etc., can solve the problems of shortening the breeding cycle and inability to survive the winter, and achieve the effects of shortening the breeding cycle, solving water-air contradictions, and high survival rate
Active Publication Date: 2018-12-21
YUNNAN AGRICULTURAL UNIVERSITY
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[0004] In order to overcome the problems existing in the background technology, the present invention provides a method for cultivating sweet potato seedlings by mist, using sweet potato vines to directly mist cultivate seedlings, with high survival rate, fast rooting speed, and healthy and robust seedlings can be obtained quickly and efficiently; Seedlings can be provided at any time according to the requirements of the cultivation season, which solves the problem that the field sweet potato seedlings cannot survive the winter in winter; through continuous multiple seedling cutting, the growth speed of the seedlings is greatly accelerated, the reproduction period is shortened, the reproduction coefficient is improved, and the production The cost is greatly controlled; the infestation of soil-borne diseases can be avoided, the germplasm of sweet potatoes is maintained, and the foundation for the later exertion of variety effects and production increase effects is laid; no need for cultivation management such as ridges, irrigation, weeding, and fertilization of cultivated land, saving labor; fog The nutrient solution used in cultivation can be recycled and has no discharge, which is a water-saving, fertilizer-saving and pollution-free cultivation method
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Embodiment 1
[0026] A kind of sweet potato mist cultivation seedling method, concrete steps are:
[0027] 1) Cleaning and disinfection of the aeroponic greenhouse: fumigate and disinfect the entire greenhouse, and use the steam generated when potassium permanganate and formaldehyde are mixed for sterilization. Mix 8ml of formaldehyde and 5g of potassium permanganate per 1 square meter. After one week of fumigation, disinfect the seedbed for aeroponic cultivation, and use 2% sodium hypochlorite solution to spray and disinfect the inside and outside of the seedbed;
[0028] 2) Prepare high-nitrogen nutrient solution for aeroponic culture: Ca(NO 3 ) 2 4H 2 O, 95mg / L NH 4 NO 3 , K of 333mg / L 2 HPO 4 , K of 167mg / L 2 SO 4 , 283mg / L of MgSO 4 ·7H 2 O, 17mg / L FeSO 4 ·7H 2 O, 0.875mg / L of CuSO 4 ·5H 2 O, 1.875mg / L of MnSO 4 ·H 2 O, 2.083mg / L of H 3 BO 3 , 0.625mg / L ZnSO 4 ·7H 2 O, 0.125mg / L (NH 4 ) 6 MoO 24 4H 2 O is mixed and prepared as aeroponic circulating nutrient solu...
Embodiment 2
[0036] A kind of sweet potato mist cultivation seedling method, concrete steps are:
[0037] 1) Cleaning and disinfection of the aeroponic greenhouse: fumigate and disinfect the entire greenhouse, and use the steam generated when potassium permanganate and formaldehyde are mixed for sterilization. Mix 8ml of formaldehyde and 5g of potassium permanganate per 1 square meter. After one week of fumigation, disinfect the seedbed for aeroponic cultivation, and use 2% sodium hypochlorite solution to spray and disinfect the inside and outside of the seedbed;
[0038] 2) Prepare high-nitrogen nutrient solution for aeroponic culture: Ca(NO 3 ) 2 4H2 O, 95mg / L NH 4 NO 3 , K of 333mg / L 2 HPO 4 , K of 167mg / L 2 SO 4 , 283mg / L of MgSO 4 ·7H 2 O, 17mg / L FeSO 4 ·7H 2 O, 0.875mg / L of CuSO 4 ·5H 2 O, 1.875mg / L of MnSO 4 ·H 2 O, 2.083mg / L of H 3 BO 3 , 0.625mg / L ZnSO 4 ·7H 2 O, 0.125mg / L (NH 4 ) 6 MoO 24 4H 2 O is mixed and prepared as aeroponic circulating nutrient soluti...
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Abstract
The invention relates to an aeroponic cultivation seedling culture method of sweet potatoes, and belongs to the technical field of sweet potato seedling culture. The method includes the specific steps that an aeroponic cultivation greenhouse and a cultivation seedbed are cleaned and disinfected; an aeroponic cultivation nutrient solution is prepared; sweet potato seedlings are sheared; after all leaves are sheared off, two sections of each sweet potato seedling are directly retained on the surface of the aeroponic cultivation seedbed, and three sections of each sweet potato seedling are suspended in the seedbed for seedling planting; aeroponic cultivation is carried out for 35-40 days, and first-time seedling shearing starts when sweet potato vines are 35-40 cm long; 30-35 days after first-time seedling shearing, second-time seedling shearing starts when vines newly growing from lateral buds are 35-40 cm long; after second-time seedling shearing, every four leaf sections on the surface of the seedbed are lowered by two leaf sections for receiving the nutrient solution to form a new root system, and the seedling shearing process in the next cycle continues. By the adoption of aeroponic cultivation, healthy sweet potato seedlings can be continuously and repeatedly produced within a short cycle; the survival rate is high, the rooting speed is high, the reproduction cycle is short, the reproduction coefficient is high, and the production cost is low; the method is easy to implement and saves labor as tedious field cultivation and management measures are not needed.
Description
technical field [0001] The invention belongs to the technical field of sweet potato seedling cultivation, and in particular relates to a method for cultivating sweet potato seedlings with mist. Background technique [0002] Sweet potato is a vegetatively propagated crop. There are usually two methods of root tuber and vine seedling cultivation. The cost of root seedling cultivation is high and the reproduction coefficient is low; the vine seedling cultivation has high reproduction coefficient and low cost, but there is a problem that it cannot survive the winter. Therefore, we must explore a new method of high-quality, fast and low-cost sweet potato seedling cultivation. [0003] Regarding the methods of raising sweet potato seedlings, at present, tuber tubers and vines are mostly used to grow seedlings, that is, tubers that have passed the dormant period are used to sow in the field to germinate, or the old tubers of the first year are directly used for cutting seedlings. ...
Claims
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