Why Did Rhododendron Decrease After Applying Organic Fertilizer

A letter from a reader from Hangzhou Tianzhu, Zhejiang Province asked: I collected some egg shells and bean dregs, placed it in jars and sealed it for 6 months, drained the fertilizer solution, and added 20 times more water, which was used for pouring potted plants. Most potted plants The growth was good, but there were two pots of rhododendrons that died of dead leaves a few days later. Rhododendron fertilizer should pay attention to what? A: After your cuckoo has applied the retort organic fertilizer solution, there is an abnormal deciduous death. There may be the following reasons: First, there may be a small amount of salt (sodium chloride) in the eggshell and dregs. The rhizomes of the rhododendrons are more sensitive to sodium ions, causing them to die of deciduous roots. The second is a 5% concentration, which may be a little stronger for the hairy roots of azaleas, or the last remaining fertilizer solution, which will have a higher concentration, making the plants harder to resist. Third, the timing of fertilization is not appropriate. For example, after flowering, after the new root tip has just been extended, or when the temperature is higher than 32°C, the azalea's absorption function is very weak, resulting in damage to the roots and the leaves of the plants. . In addition, Rhododendron is not suitable for irrigation with well water, especially deep well water. Long-term use of well water irrigation rhododendron can easily lead to decreased root activity, causing plant death. Rhododendron fertilization should be based on the needs of different growth periods. Before flowering, topdressing with phosphate fertilizer, 0.2% potassium dihydrogen phosphate can be sprayed on the foliar or roots, once every 10 days, 2 times to 3 times. Stop fertilization during flowering, spend 10 days to 15 days after flower Xie and then add topdressing nitrogen fertilizer, available 3% organic fertilizer solution, can also be used 0.2% urea solution, promote plant shoot tip long leaves. From July to August in the hot season, plant growth is stagnant and fertilization is not appropriate. After the cool season in autumn, it is necessary to apply more phosphate fertilizer for the bud enlargement period, once every 10 days. After winter, if the temperature of the greenhouse is lower than 13°C, the plants will stop growing and fertilizer should be stopped in time. Rhododendron fertilization should pay attention to thin fertilization facilities, organic fertilizer does not stain the foliage. Fertilization is best done in the evening on a sunny day, when the potted soil is dry, and then sprayed with fresh water the next morning to help dissolve the fertilizer in the soil and make it easier for the root system to absorb.

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.

*Related Products:vitamins drugs,nutritions drugs.

Vitamins & Nutritions

Vitamin Injection,Multi Vitamin Tablets,Vitamins & Minerals

NOUVASANT PHARMhealth LTD. , http://www.nouvasant.com