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Science excavation and preservation technology of winter bamboo shoots
Winter bamboo shoots are developed from the lateral stems of the bamboo stem (Bamboo whip) before and after the beginning of autumn, and reasonable harvesting and digging of bamboo shoots can increase economic income. Digging winter bamboo shoots to "four look" A look at woodland conditions: From the topography of bamboo forests, 500 meters above sea level, south or southeast of the bamboo forest, more winter bamboo shoots, maturation period is early, most can be bamboo, can not be digging. The higher the bamboo forest topography, the longer bamboo shoots are transformed into spring bamboo shoots. Generally, more bamboo shoots are rejected and bamboo shoots are more difficult. Second, look at the season in which bamboo shoots are formed: The experience of bamboo farmers is: "Nine spring bamboo shoots have fallen into the spring, and nine bamboo shoots have cleared out after nine winters." The winter bamboo shoots formed before the winter solstice, only a few can be converted into spring bamboo shoots, generally digging; winter bamboo shoots formed after the winter solstice, most can be transformed into bamboo shoots unearthed bamboo, should not be digging. Three to see the bamboo structure: In general, underground bamboo whip 2-3 years of firing rate as high as 85%. Therefore, mother bamboos of 1-2 years old and 3-4 years old each account for more than 30%, bamboo forests with 160-200 bamboos per mu, and the yield of winter bamboo shoots is high, and appropriate excavation can be conducted. Look at the bamboo shoots: "The tips of the two are sharp, and the middle curve is rotten and mashes into the pulp; the top one is fine, the next one is thick, and it comes to Hunchun." Bamboo shoots with curved bamboo shoots, sharp spikes at the base, or cracking and aging of the bamboo shell cannot be converted into bamboo shoots. Excavation; fullness of the base, well-developed roots, and tender bamboo leaves with tight bamboo shoots, can be turned into spring bamboo shoots and should not be dug. Method of Storage and Preservation The method of cooking by fire on stoves: The bamboo shoots dug back in, and the shells buried in the fire, are cooked and cooked (the hands are soft and have no hard feeling). Remove it after cooking, place it in a cool, damp place and drain it well. When it is eaten, go to its shell and cut into thin slices. Drain off the bitter taste with water. Using this method to save winter bamboo shoots can be stored for 35-45 days. Sand trap method: Take a wooden barrel or carton and lay 7-10 cm thick on the bottom of the wet river sand. Place the undamaged winter bamboo shoots pointed upwards in a cask or cardboard box. Fill the gap with river sand, and then cover. A layer of 7-10 cm river sand will completely cover the top of winter bamboo shoots, move to a cool ventilated place, can be stored for 30-50 days without deterioration. Closure method: Take a clean bamboo shoot and put it in a jar or a jar. Then cover it with two layers of plastic film and tie it tightly so that the air is not easy to enter; or take a plastic bag that does not leak, and put it tightly after the winter bamboo shoots. Place in a cool, ventilated place. Using this method to save winter bamboo shoots, can be stored for 20-30 days. Steaming method: The selected bamboo shoots are removed from the shell and washed, and then the large bamboo shoots are cut in half, put on a steamer or a clean water pot and cooked until 5 is mature, and the steamed cans are stored in a bamboo basket and can be kept fresh. -15 days. This method is suitable for broken bamboo shoots or winter bamboo shoots for a short time.