First, the preparation of nutritious soil using the screen of the river sand and soil in a 1:1 ratio can be fully stirred evenly. The river sand is required to be clean without any pollution, and coarse sand is preferred, and it is advisable to prepare the soil with topsoil in the field. Second, bags of nutritional bags can choose 15 cm × 8 cm polyethylene film bags. Before bagging, cut 1 cm diameter holes in the two corners of the bag to facilitate water circulation. When bagging, the nutrition bag is required to be filled with compaction and placed vertically and neatly in the nursery pond. Third, the placement of electric hotbeds 1, the selection of 1000 watts of hotline, the length of about 100 meters, check whether the electricity before use, remove the bad hotline. 2. Make a rice dumpling of 3 meters by 1.7 meters. Lay a grass or wheat straw at the bottom to facilitate heat preservation. Put on the mulch and make holes in the membrane to facilitate seepage. 3. Geothermal lines are laid on the mulching film. The geothermal line spacing is 4-5 centimeters, and the geothermal lines are evenly distributed with no overlap. 4. Place a 12-centimeter thick clean river sand on the ground heating line, spread out and sprinkle water, and maintain the humidity in the hotbed. Fourth, the cutting of cuttings The storage of branches, removed from the sand pit, grading selection, select the internode short, full shoots, no mildew and damage, diameter 0.8-1.3 cm 1-year-old branches, according to 2 -3 buds are cut. When cutting, the terminal buds must be full-filled buds, cut 1-1.5 centimeters from the upper buds, and cut under the cuttings near the joints. Because the nutrients stored inside the diaphragm are more, it is easy to form callus and occur. New root. Fifth, the cuttings are soaked in water. Cut the cuttings by 20 to 30 bundles in one bundle. When the bundles are bundled, the inserts must have the same polarity, and the cuts should be equal, and the bundled inserts should be soaked in water. 12-24 hours, promote cell swelling, storage of nutrients and endogenous hormone activation. 6. Cutting rooting treatment 1. Chemical treatment rooting: abc rooting powder. With a concentration of 50 mg/l, soak the base of the insert for 4-8 hours. Naphthaleneacetic acid. When used, make sure that the cuttings stand upright in the liquid and soak the base for 3-4 cm. The top bud must not be sticky. Use a concentration of 100 mg/L and soak the base for 8-12 hours. 2, electrothermal hotbed reminder: The pharmacy treatment of the cuttings, according to the variety of neatly placed in a hotbed, and fill the gap with fine sand, the height of the sand cover is not more than the cuttings of the top bud is appropriate, generally placed 6000- 7000 pieces/m2 cuttings, filled with water after pouring once, and insert a bamboo tube around the middle of the hotbed and in the middle to allow the thermometer to be inserted to observe the change of the temperature of the hotbed and then heat up the electricity. Pour water once before electricity, so that the sand bed moisture content of 60-70%, that is, the hand into a group and finger water seepage. In the future, water will be poured every 2-3 days to avoid water shortage and drought in the sand bed. Within 1 week of energization and heating, the temperature of the hotbed is controlled at 18-20°C to maintain a certain low temperature stage. The temperature in the shed is controlled at 7-8°C to prevent premature germination of the top bud, and it is advisable to control the humidity in the shed to be around 80%. After a week of root-enhancing treatment, the temperature of the hotbed is gradually raised to 20-25°C, and rooting conditions are checked at any time. Callus appears in more than 80% of the cuttings, the base of the cuttings expands, and the young root tissue grows. Can open the straw curtain so that the temperature quickly rose to 10-15 °C, to promote the top buds sprouting, so that when the cuttings choose full of vitality of the top buds, improve the cuttings into the vigor of the greenhouse. Afterwards, the temperature is gradually lowered to adapt the new root to the external environment before cutting. When the root of the original body broke through the skin to 0.5 cm when the selection of germination exposed cuttings for cuttings. This will help the cuttings to root and germinate at the same time after inserting the nutrient bag, avoiding the problem that the survival rate of the greenhouse is not high due to the fact that the cuttings are too long and the new roots are easily cut during cutting and the terminal buds cannot germinate after cutting. . When the cuttings, the rooting is not ideal or the top buds are not full, and the cuttings without sprouting are put into the hotbeds to continue the rooting.
Vegetable powder is dried and dehydrated from vegetable raw materials, and then further crushed; Or first beating, then evenly spray dried powder of vegetable pellets. 1] Vegetable powder is an extension of dehydrated vegetables. It covers carrot powder, tomato powder, potato powder, pumpkin powder, red beet powder, spinach powder, celery powder, yam powder and other vegetable categories. Weaned infants are unable or unable to eat vegetables due to insufficient tooth development, the elderly are inconvenient to eat vegetables due to bad teeth or falling off, and some adults reduce their consumption of vegetables due to working relations or other reasons. Therefore, vegetable powder has a wide market in this kind of population. In addition, vegetable powder is also a pure natural colorant (carrot powder, tomato powder, spinach powder, red beet powder, celery powder, pumpkin powder, etc.), which is an excellent raw and auxiliary material for processing vegetable bread, vegetable noodles, specialty foods, etc.
characteristic
The advantages of processing fresh vegetables into vegetable powder are: low moisture content, can prolong the storage period and reduce the costs of storage, transportation and packaging; The utilization rate of vegetable powder processing raw materials is high, especially there are no strict requirements on the size and shape of raw materials, which widens the application range of vegetables. Research shows that vegetable powder can be applied to almost all fields of food processing, can be used to improve the nutritional composition of food, improve its color and flavor, and can replace the use of artificial pigments in today's society, which has brought protection to the health of our consumers.
Development trend
The processing of vegetable powder abroad is developing in the direction of low-temperature ultra-fine grinding. After drying, the fruits and vegetables are crushed by ultra-fine grinding, and the particles can reach the size of micron. The market advantages of the new vegetable powder are: the ultra-fine particles are more convenient to use; Nutrients are easier to digest and taste better; It can realize the full utilization of fruits and vegetables without skin residue, which is in line with the development direction of "high efficiency, high quality and environmental protection" of today's food processing industry
Spinach Powder, Cabbage Powder, Cucumber Powder
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