RAISING SEEDLINGS IN NURSERIES
Planting healthy seeds or seedlings prompts healthy and better harvests. Present agriculture advances implement to create solid and healthy seedlings
A portion of the seeds of vegetable harvests like tomato, brinjal, capsicum, and cucurbits are first brought up in nursery under secured conditions to accomplish the greatest germination count and healthy plant foundation and afterward transplanted to the main field.
Farmers and nursery chiefs are bringing seedlings up in plug trays or portrays to deliver the healthy seedlings. Soilless media with coco-peat, vermiculite, and the microbial consortium is generally used to plant the seeds and the establishment media. Planting is done physically and furthermore with a seed planting machine.
Importance of vegetable seedlings production in a protected nursery
Less loss of costly seeds
Proper seed germination, uniform development, least seedling mortality
Least pest and disease occurrence
Components and the process involved in modern nursery raising system
Seeds, Seedling tray, media, mechanization, water system, nutrients, ensured structure, light, and seed pelleting and preparing, organic improvement, and solidifying.
Distinctive measured plate with differed quantities of cells is utilized to develop the seedlings in vegetable nurseries. The number of cells in depict changes from 72 to 800 cells for each standard plate (53.7 X 27.5 cm). The size of the cell is significant as it controls the measure of media utilized just as a water-holding limit. Seedlings delivered in bigger cells are taller and have more noteworthy dry load than those developed in little cells
The chemical and physical properties of the developing media is a key factor for successful nursery production. Optimum root development is generally reliant on the physical qualities of media like water, air circulation, and supplement holding limit of the media.
Clean developing media must be utilized and might be idle, yet it ought to have appropriate cation exchange capacity (CEC) which is related to pH and supplement engrossing limit. Coco peat which is a side-effect of extraction of fiber from coconut husk a 100 % characteristic, biodegradable, stringy, and spongiest material is ordinarily utilized as a primary element of nursery developing media. It has high C: N proportion, high water-holding limit around seven to multiple times of its own weight.
Better germination of seeds relies on the temperature and for the most part, ought to be warm with uniform dampness in the media. Modified germination chambers are intended to use in nurseries for better germination. Dark polyethylene sheet is utilized to cover the depicts in the wake of planting to encourage a hotter temperature to start germination.
Perfect temperature in pull zone required for a portion of the vegetable seeds to grow
Tomato and Brinjal 210 C – 240 C ; Chili and capsicum 28 0 C to 320 C
The perfect root zone temperature is 26 0C to 290 C during the initial month of development of seedlings and 20 0C to 26 0C during the fifth and 6th weeks.
Seedlings should be irrigated normally for better development and improvement of the seedlings. Nursery cultivators utilize rose can or flush blast to water the seedlings. Overwatering likewise is perilous for the developing seedlings as there may be odds of creating foliar illnesses, neckline, and root diseases.
Nutrition for developing young seedlings is particularly essential separated from the nutrients present in the cocopeat or developing media. The nutrition is provided through foliar application for the developing seedlings.
Young developing seedlings require additional security at the more Young stage as they are delicate and delicate with the goal that the sucking vermin are especially alluring to suck the juice and simultaneously they go about as vectors to spread numerous infectious and dangerous sicknesses those may happen later in plant advancement stages.
These sorts of chances are more when the seedlings are raised outside the secured structure or open field. The protective structure likewise shields the youthful seedlings from unfavorable climatic conditions like a downpour, wind, heat, and numerous sicknesses.
Pest and disease management.
Cleanliness and hygiene in the nursery, among the carton or depicts is the most significant job in the control of vermin and maladies.
Standard cleansing of the developing media, structures, instruments, and plate must be finished with the utilization of steam or synthetic.
Disease anticipation might be viable with legitimate and viable ventilation and air development inside the nursery zone.
Pests and diseases that could influence the development of healthy seedlings to be comprehended and powerful estimates should be arranged well ahead of time.
Pesticides application should be done with the additional mind and know that nursery/Nursery raised plants might be more touchy to synthetic substances than in the open field.