Canned Mushroom,Canned Shiitake Mushroom,Canned Straw Mushroom Huayi Foodstuff Co., Ltd. , http://www.ln-foods.com
Excessive Fertilization of Vegetables Causes Physiological Diseases
Vegetables are more economically beneficial crops. Therefore, in order to obtain higher yields, many farmers often apply organic fertilizers and chemical fertilizers excessively, causing excessive accumulation of soil nutrients and causing physiological obstacles to vegetables. The common physiological diseases of cultivated vegetables in greenhouses and greenhouses are described as follows: 1. Cucumber 1. Yellow veins between veins. The reason is that excessive application of phosphate fertilizer causes zinc deficiency. 2. Yellow and white veins. The reason is that excessive potassium fertilizer causes magnesium deficiency. 3. Yellow and white veins, the leaf margin is still green. The reason is that excessive application of phosphate fertilizer causes magnesium deficiency. 4. Leaves brown along the veins. The reason is that excessive application of phosphate fertilizer causes potassium deficiency. Second, tomatoes 1. There are striped grooves on the surface of the stem, and even cracks and hollows in the stem. The reason is that excessive nitrogen fertilizer causes calcium and boron deficiency. 2. The fruit falling part appeared necrotic, blackened and rotted. The reason is that high temperature, dry and excessive application of nitrogen fertilizer or potassium fertilizer, affect the absorption of calcium. 3. The fruit surface around the sepals is green. The reason is the lack of potassium due to excessive nitrogen fertilizer and dry climate. 4. Bad coloring, fruit surface with dark brown. This is caused by agglomeration of various nutrients and poor drainage. Third, eggplant 1. Bracts longitudinal, corked. The reason is that too much nitrogen fertilizer affects the absorption of calcium. 2. The top of the fruit (falling part) is dented and hardened. This is due to excessive nitrogen application, which affects the absorption of water. 3. The lower leaf or lateral branch leaves have brown spots. The reason is excessive manganese caused by poor drainage. Fourth, the top of the pepper (falling flower parts) becomes dark and soft. The reason is that nitrogen fertilizer or potassium fertilizer is applied in excess and calcium deficiency is caused by high temperature drying. V. Cabbage 1. The inside of the ball is browned and rotted. The reason is that excess nitrogen causes calcium deficiency. 2. In the early and middle stages of the ball, the leaf margin becomes brown and decays. The reason is that excessive nitrogen fertilizer causes calcium deficiency. Six, cabbage 1. The parts of the cabbage are brown and rot. The reason is that excessive application of nitrogen fertilizer causes calcium deficiency. 2. In the early and middle period of the package, the leaf margin became brown and decayed. The reason is excessive nitrogen fertilizer and high temperature, dryness caused by calcium deficiency. 3. Black scattered small spots appear on the epidermis of the main vein of the core-bearing leaves. The reason is that the lack of sunlight, excessive nitrogen fertilizer caused poisoning. 4. The main veins and petioles of the cores of the balsamic leaves appear to be fur-like. The reason is excessive calcium and high soil pH. Seventh, the growing point of Artemisia annua becomes brown and necrotic, and plant height stops growing. The reason is that excess phosphorus and dryness cause calcium deficiency. Eight, the heart of the celery plant turns brown and rot. The reason is that excess nitrogen or potassium causes calcium deficiency. Nine, spinach 1. The leaves of the true leaves started to grow green and brown gradually, and their fertility was inhibited. Caused by excess phosphorus. 2. Yellowing or yellowing between veins. The reason is that the high pH value of the soil causes manganese deficiency, especially after rain. 3. Yellowing of the new leaf margin occurs. The reason is that excess manganese causes ferritin deficiency. Ten, radish 1. The leaves of the middle leaves appear dark purple and the veins gradually become brown. The reason is that the high phosphorus in the soil causes other nutrient imbalances. 2. The dark brown center of the root gradually turns pale yellow. This is due to the high pH of the soil and the lack of boron due to excess calcium. XI. Watermelon 1. Small dark spots appear on the leaves centered on the fruit-setting section. The reason is that the excessive application of potassium fertilizer causes a lack of magnesium toxicity. 2. The vines and leaves are long, and the upper part of the vine is thicker and harder to bear. This is due to too much nitrogen.