The regulation of temperature in the greenhouse mainly refers to two aspects of insulation and cooling. The greenhouse insulation is mainly in late autumn, winter and spring, generally starting in late October and ending in late April. Commonly used heating materials, stoves, heating wire, plumbing, air heating, steam, covering and other regulation methods for heating and heat preservation. In practice, sometimes there are several ways to use it together. Reasonable layout. When the greenhouse is set up, it must have sufficient sunlight conditions to avoid shading. When selecting agricultural film, it is best to use non-drop film. The new film must be selected for the top film of the greenhouse. Old films cannot be used. The larger the greenhouse area, the slower the temperature reduction and the better the insulation effect. Multi-layer coverage. When the frost comes and the minimum daily temperature is 0 to 4°C, a small shed is placed inside the greenhouse and shade nets or non-woven fabrics can be covered. When the minimum temperature outside the greenhouse drops below 0°C, the grass skirt is covered at the outer skirt of the greenhouse. The small shed inside the greenhouse is covered with two layers of film. A layer of shade net or non-woven fabric is sandwiched between the two layers of film. In addition, a layer of grass is covered near the small arches on both sides of the greenhouse. If the temperature is still too low, a layer of shade net can be covered on the roof membrane of the greenhouse, and even within the greenhouse, two membranes can be covered 10 to 20 cm from the ceiling membrane. Warming temporarily. When the outside temperature is particularly low and multi-layer coverage cannot meet the requirements, temporary heating measures should be considered. Methods are: 1, open flame heating. It is not possible to burn firewood or coal in greenhouse facilities with open flame heating, and charcoal can be used for heating and heating. However, attention should be paid to the hazards of toxic gases such as carbon monoxide. 2, heating the heating line. In the greenhouse soil is buried electric heating wire, using heating wire heating to increase soil temperature. This method is commonly used in winter and spring nursery and protective cultivation, the effect is good, but the use of higher costs. 3, hot stove heating. In the vicinity of a power plant or a boiler factory, the remaining heat can be used for heating. The method has low cost and good effect, and is particularly suitable for use in a multi-span greenhouse or a large-span greenhouse. 4, hot water bottle heating. During the day, water bags are placed in large greenhouses. The water has a large specific heat, and it absorbs sunlight energy during the day and converts it into heat energy. It gradually releases heat energy when it cools at night, thereby increasing the temperature of the greenhouse. 5, plumbing heating. The water is fed into the boiler and warmed to turn the water into steam, hot water or warm water. It is introduced into the iron pipes or radiators in the protection facility through the transfer iron pipe to increase the temperature. After cooling, it returns to the boiler from the return pipe and reheats, continuously circulating. Fill the brewers. During soil preparation, planting or planting seed beds, the soil is filled with brewing materials, such as fresh garbage, manure, cow dung, pig manure, etc., plus straw, and then the vegetable garden soil is buried. The heat released by fermentation using brewing materials is increased. Soil and air temperature. This method has good results in the early fruit cultivation of fruit vegetables and the early maturing of leafy vegetables such as leeks and leeks. In our province, pig manure is commonly used in rural areas as a heating material, blending chicken, sheep feces or human urine. The brewing object must be fresh, stratified when stepping on the bed, thickness of 20 to 30 cm, moisture content of about 70%. Ecological insulation. In the winter or spring season nursery or cultivation, soil preparation, base fertilizer, and agricultural film shall be applied 10-30 days before sowing or planting to warm up the greenhouse and increase soil temperature. In the shed around the width of 25 ~ 30 cm open, fill in horse dung, chicken dung, sheep dung, sawdust, firewood, etc., above the cover soil slightly higher than the ground. When planting, seedlings should be level with the ground or slightly above the ground and should not be planted too deeply. After planting, the root water should be poured at the speed, and it is better to use deep well water for irrigation to slow down the seedlings. Without covering the mulch, the early stage of growth should be ploughed between the rows of cultivators to increase soil temperature and preserve soil moisture. Antifreeze in time. Before the arrival of the cold wave, if the conditions of the shed were not covered in the greenhouse, the water could be sprayed when the soil was dry and there was a certain degree of antifreeze effect. In the greenhouse -3 ~ -4 °C, seedlings in the greenhouse can be free from frost damage. Before the frost, smoking outside the shed can increase the temperature around the shed by 1 to 2°C, and the temperature in the shed increases accordingly. In addition, it is also possible to use the cr-6 cold-resistant agent 75 times spray, combined with 50 times liquid soaking before sowing, 100 times liquid dip root transplanting, or foliar spray. Pepper seedlings 3 to 4 leaves, once in 7 days, even spray 2 times 0.5% calcium chloride liquid, antifreeze effect is good. One to two days before the onset of the cold wave, it is also possible to spray 1% glucose on the foliage. (Wang Dixuan) Rice is a
finished product made after the process of rice cleaning, glutinous
rice, rice milling, and finished product finishing. The
embryo and aleurone layer of rice contain nearly 64% of rice nutrients
and more than 90% of the nutrients required by the human body. It is the
main food of the people of the South. Rice Long Grain Rice,Basmati Rice,Glutinous Fragrant Rice,Long Grain Basmati Rice Ningxia Saiwaixiang Food Co., Ltd. , https://www.nxswxfood.com
The carbohydrate in rice is mainly starch, and the edible rice has higher nutritional value.
Storage taboo
Rice
should not be stored at the same time as foods with high moisture such
as fish, meat, vegetables, etc., otherwise it will easily cause water to
cause mildew; rice should not be stored directly on the ground, and
should be placed on a dry, ventilated and clean pad; indoors should be
stored with high moisture content. Otherwise, it
is easy to absorb water and cause mildew; the family avoids rice stored
in the kitchen because the kitchen has high temperature and high
humidity, which has a great influence on the quality of rice.