CATDOLL : CATDOLL: What are “pond agriculture”, “vertical agriculture” and “colorful agriculture”?

1. What are “base pond agriculture”, “vertical agriculture” and “colorful agriculture”?

The base pond agriculture is a unique agricultural production method created by the people of the Pearl River Delta based on the local natural conditions. Mulberry, sugarcane, and fruit trees are planted on the base of the fish pond, and the combination with the fish pond is called mulberry-based fish pond, sugarcane-based fish pond, and fruit-based fish pond. The base ponds promote each other, and the mulberry-based fish pond is the most typical.

Vertical agriculture is to utilize resources such as light, heat, water, fertilizer, and air, and to utilize the time and space differences in the growth process of various crops, to produce crops simultaneously or relatively on the ground, underground, on the water surface, underwater, in the air, and in front of and behind. Through reasonable assembly and matching of coarse and fine, various types of multifunctional, multi-level, and multi-channel high-yield and high-quality production systems are formed to obtain the maximum economic benefits. For example, planting strawberries in grape fields, planting vegetables after harvesting strawberries, etc. In the Yahekou Reservoir area, cage fish farming, whitebait farming, and fish farming in the reservoir branches are developed on the surface of the reservoir, and vertical farming of pigs, chickens, and waterfowl is developed around the reservoir. This is also a typical example of vertical agriculture.

Plants are not only phototropic, but also selective for the spectrum. Different crops prefer different colors of light, which people call color agriculture. Under red light, rice and wheat grow fast, mature early, and have high yields; peppers grow fast and produce more fruits; beets have high sugar and vitamin content. When covered with purple film, eggplant fruits are large and numerous; spinach stems are strong and leaves are fat; tomato yields increase by more than 40%. When celery is illuminated with yellow light, the leaves are large and the stems are thick, the quality is excellent, and the yield increases significantly. Silver film has the functions of heat preservation and heatstroke prevention, warm in winter and cool in summer, increasing light and heat, early maturity and increased yield, and is suitable for the cultivation of a variety of vegetables. With the advancement of science and technology, the application of color in agriculture will become increasingly widespread.

2. How to catch whitebait cultured in reservoirs?

(1) First, observe the terrain, watch for changes in wind direction, and choose a location to cast the net. After connecting various net cables, pile the nets on the side deck in order, connect the floating buckets, buoy tubes, etc., and place the central pole vertically on the nets.

(2) After the net-casting boat arrives at the fishing ground, the main boat sends a signal and the two boats move closer, with a distance of 1 meter between them. The auxiliary boat quickly hands the central pole to the main boat, releases the net and sails downwind.

At the same time, the main boat quickly puts the central pole into the eye rings of the upper and lower auxiliary lines, and adjusts the height of the upper auxiliary line tied on the pole according to the operating water depth, and then puts it into the water, and then releases the nets one by one. The bow turns right, so that the port side is exposed to the wind and sails away. After the nets and the towing line are released, the line rope is tied. The two boats are in an inverted "eight" shape, 50 to 60 meters apart.

(3) When trawling and fishing, trawle to the west when the wind is northeast and to the north when the wind is southeast.

The two boats keep the same speed, with a towing speed of about 2.5 kilometers per hour. After 2 to 3 hours of trawling, the net bag is emptied to take out the fish. When taking out the fish, the two boats take turns to lower the small sampan, with two people working on each sampan, rowing to the top of the net bag, picking up the buoy tube and pulling the net bag, untying the bottom rope of the bag to pour out the catch, and then tying the bottom of the net bag and putting it into the water.

(4) The net is pulled up when the trawling net is close to the shore or when the catch is small.

Put the tools into the cabin in order, return the planks to the side of the big ship, clean the net, and the big ship will take the net on board and dry it on the main mast, and put the central pole and towing line on board. The whole net lifting time takes about 15 minutes.

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3. How to clean whitebait? What are the nutritional values ​​of whitebait?

Pour the fish into a small basin of clean water, stir it gently with your hands to let the dirt settle, then pick up the small fish with a strainer, and rinse it three or four times in this way. Alternatively, you can pour the fish into the strainer, turn on the faucet, and let the running water rinse slowly. After washing it, let it sit for a few minutes, drain the water, and then start cooking. If it is still not clean, you can blanch the fish in boiling water after rinsing it, so that you can eat it with peace of mind. Whitebait is a high-protein, low-fat food that is beneficial to patients with hyperlipidemia. Traditional Chinese medicine believes that it tastes sweet and is mild in nature, is good for the spleen and stomach, and can be good for the lungs and diuretics.