Vitamins:
Vitamin A:
Retinol. Carotene compounds responsible for transmitting light sensation in the
retina of the eye. Deficiency leads to night blindness.
Beta carotene: An
antioxidant which protects cells against oxidation damage that can lead to cancer.
Beta carotene is converted, as needed, to vitamin A. Food sources of beta
carotene include vegetables such as carrots, sweet potatoes, spinach and other
leafy green vegetables; and fruit such as cantaloupes and apricots. Excessive
carotene in the diet can temporarily yellow the skin, a condition called
carotenemia, commonly seen in infants fed largely mushed carrots.
Vitamin B1:
Thiamin, acts as a coenzyme in body metabolism. Deficiency leads to beriberi, a
disease of the heart and nervous system.
Vitamin B2:
Riboflavin, essential for the reactions of coenzymes. Deficiency causes
inflammation of the lining of the mouth and skin.
Vitamin B3:
Niacin, an essential part of coenzymes of body metabolism. Deficiency causes
inflammation of the skin, vagina, rectum and mouth, as well as mental slowing.
Vitamin B6:
Pyridoxine, a cofactor for enzymes. Deficiency leads to inflammation of the
skin and mouth, nausea, vomiting, dizziness , weakness and anemia.
Folate (folic
acid): Folic acid is an important factor in nucleic acid synthesis (the genetic
material). Folate deficiency leads to megaloblastic anemia.
Vitamin B12: An
essential factor in nucleic acid synthesis (the genetic material of all cells).
Deficiency leads to megaloblastic anemia, as can be seen in pernicious anemia.
Vitamin C:
Ascorbic acid, important in the synthesis of collagen, the framework protein
for tissues of the body. Deficiency leads to scurvy, characterized by fragile
capillaries, poor wound healing, and bone deformity in children.
Vitamin D: A
steroid vitamin which promotes absorption and metabolism of calcium and
phosphorus. Under normal conditions of sunlight exposure, no dietary
supplementation is necessary because sunlight promotes adequate vitamin D
synthesis in the skin. Deficiency can lead to osteomalacia in adults and bone
deformity (rickets) in children.
Vitamin E:
Deficiency can lead to anemia.
Vitamin K: An
essential factor in the formation of blood clotting factors. Deficiency can
lead to abnormal bleeding.
Nutritions:
For the treatment
of nutritional disease, any of the nutrient-related diseases and conditions
that cause illness in humans. They may include deficiencies or excesses in the
diet, obesity and eating disorders, and chronic diseases such as cardiovascular
disease, hypertension, cancer, and diabetes mellitus. Nutritional diseases also
include developmental abnormalities that can be prevented by diet, hereditary
metabolic disorders that respond to dietary treatment, the interaction of foods
and nutrients with drugs, food allergies and intolerances, and potential
hazards in the food supply. All of these categories are described in this
article. For a discussion of essential nutrients, dietary recommendations, and
human nutritional needs and concerns throughout the life cycle, see nutrition,
human.
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In addition to the seasonal season, planting trees have four points of attention in planting:
One, rough farming. According to the ecological habits of trees, the soil is required to be intensively cultivated. Thorough deep turning is required, with a depth of 40 to 50 centimeters, to loosen the soil and increase the ability to store water. The land preparation must also be meticulous, otherwise the trees cannot take root and affect survival. The use of trenching requires the formation of a horizontal trench to facilitate irrigation.
Second, the choice of tree species. According to the different purposes of tree planting, the color, shape, and resistance of the tree species should be taken into account to harmonize with the surrounding environment and to beautify. It is necessary to take into account the special functions of trees in anti-pollution, anti-virus, and clean air, but also whether the tree species adapts to soil properties. For example, the soil can be grown to grow pines and cypresses, and the saline-alkali land can be used for planting skunks and privets. When raising seedlings, care should be taken not to injure the root system. Seedlings must be robust and free of pests and diseases.
Third, the planting of trees. The tree pits should be excavated in large diameters that are one-third larger than the root width of the seedlings, dig deeper than one third of the length, and should remove debris such as coal cinders and lime from the pits in order to facilitate root growth. The row spacing should be determined according to the degree of forest use. For example, if the shelter forest is 2 meters 2 meters, the production of small diameter materials can be 1 meter 1 meter or 2 meters 2 meters, and the large diameter materials are 4 meters 4 meters or 6 meters 6 meters, even 8 meters 8 meters. Meter. The row spacing must be straight symmetrical and the plants must not be skewed. When planting, care should be taken to raise the seedlings while filling the soil so that the roots do not twist and stretch.
Fourth, maintenance management. The conservation and management of trees is very important. Watering should be carried out three times immediately after planting, and it must be thoroughly irrigated. Pay attention to earthing after rooting after watering, and often weed the soil. If there is intercropping, we must ensure the survival of the trees. For fertilization, the base fertilizer should be applied at the bottom of the tree pit when digging pits, and can be used after planting manure or chemical fertilizer (about 250 grams per plant), and fertilize with a furrow or nest to promote its growth. In terms of maintenance and management, it should be divided into pieces for contracting and fixed management to ensure that the survival rate increases and the trees grow vigorously.
Four points for tree planting in spring
Spring is the most suitable season for planting trees. During this period, the trees are in a dormant period before germination. They have not yet taken root and germinated. They are unresponsive to environmental conditions such as temperature and humidity, have low physiological activity, and are resistant to the drastic and fiery climate of early spring. After planting, gradually warming up, the temperature gradually stabilized, soil thawing, more rain, just to catch up with trees wake up, enter the great season of tree growth, so the tree is planted in spring is in line with the law of growth and development, in general, the spring planting should be early Should not be late.