Recently, after nearly 20 days of waiting, is carrying out the Chinese Ocean 45 voyage Expedition Mission "Xiangyanghong 03" ship harvested the first crop of vegetables. "Xiangyanghong 03" on the deck of the growing fungus, spinach and water has withstood the sea waves of baptism, the growth is gratifying, the first harvest of 2 kilograms. The cabin planted cabbage, red rape, red amaranth, white amaranth vibrant, harvested 15 kilograms.
Green Vegetable is the important nutrition source to maintain human health, so it is very important to realize the self-sufficiency of green vegetables on ocean shipping. It is understood that because green leafy vegetables are not easy to preserve, the supply of ocean-going ships generally can only support about 20 days. Some ships during the voyage, their own production of mung bean sprouts, soy sprouts, etc., there are also a few ships trial box-type cultivation, in order to supplement the shortage of fresh vegetables. However, due to the inability to solve the problem of medium quality, illumination and temperature, and the lack of overall planning and design, there are still no successful cases of growing vegetables on board.
Introduction of marine microorganisms into plant plants in soilless culture due to sea system
"The way we used to grow vegetables on ocean-going ships was to simply ' transplant ' the land to the ship," he said. Marine Three researchers Zeng said, for example, "Xiangyanghong 09" on the ship, has used the "ship's vegetable intelligent growth system", but because it is water, the ship shaking when the nutrient solution will be dumped, and the box cultivation of poor ventilation, light efficiency is low, did not receive satisfactory results.
Ocean three This project launched the first time to introduce the special functions of marine microorganisms into soilless culture, focusing on the study of two key factors, such as matrix and nutrition, and using its ability to degrade various organic compounds, as well as its own ability to produce plant auxin, developed a new type of full nutrition matrix and nutrient solution suitable for the continuous cultivation of vegetables on the ocean-going vessels, which solves the water retention of the substrate in the vegetable cultivation of the ocean ship, increases the nutrition ingredient, and makes the cultivation simple, and forms the standardized operation Low-priced solutions.
Zeng, the Third Marine Institute of the State Oceanic Administration, said the project combines biological factors such as cultivation methods, types of vegetables, illumination, ventilation, temperature, nutrition, rotation cycle, etc., according to the overall planning of the ship's space utilization, voyage number and time.
First attempt on "Xiangyanghong 03" ship
"Xiangyanghong 03" ship during the test, on the deck and the ship planted vegetables will be a lot of green for the expedition ship. Zeng told reporters that the project based on the space of the test ship customized the substrate cultivation frame, and set up a ship on the standard operating procedures for vegetable cultivation.
"' Xiangyanghong 03 ' This voyage planted more than 300 dishes, there are cabbage, red rape, fungus, spinach, red amaranth, white amaranth, sweet potato leaves, purslane, the average of about 20 days of maturity, according to each vegetable 100 grams, a crop can be harvested 30 kilograms, equivalent to every day to provide 3 kilograms of fresh vegetables on board. Zeng said that because it is the first experimental application, so the number of small, "probably only enough to cook the crew to put some leaves, can not be used in large pot cooking." ”
After harvesting the first crop of vegetables, the current second round of vegetable cultivation has begun to work, there are lettuce vegetables, lettuce, bok choy, the Netherlands Red Jade, small chives, cucumbers and so on. The staff selected the short growing period (30 days ~ days) of vegetables, and will be the nursery and cultivation interspersed, so as to ensure that every 25 days or so to harvest a crop.
The sea three sent a of scientific research personnel with the ship to the sea, in order to further study which vegetables suitable for planting, as well as water and fertilizer control frequency, photoperiod and so on. After the ocean "actual combat" will be more perfect, the future is expected to be applied to other ocean-going ships, polar inspection stations, border posts, islands and so on.