Blight: Blight is also known as rot disease and black root disease. The hazards in our country are widespread. Before the cotton seedlings are unearthed, they often invade young roots and young shoots, causing bad seeds and bad buds. After the cotton seedlings are unearthed, At the base of the young stem close to the ground, a yellow-brown spot appears, which gradually enlarges, creating a depression in the depression, finally forming a bee-like depression in the tender stem and rot. In severe cases, it may cause death or fall.
Anthracnose: Anthracnose is the major disease in seedling diseases. The seedling and the bell stage suffer more. The cotton seedlings suffer a lighter impact and grow. A serious dead seedling is caused. The boll victim suffers from rotten bells. Anthracnose pathogens invade when cottonseeds begin to germinate, often causing cottonseed to appear rotten after germination in the soil, and can not be excavated and die. After emergence of seedlings, the lesions on the cotyledons are yellowish-brown, red-brown on the edges, with orange-red sticky substances. The pathogenic conidia. After the onset of young stems, reddish-brown spindle-shaped streak develops, and after it expands, it turns brown, with a slight depression in the middle. There are orange-red stickies on the lesions, which can cause the seedlings to die off. When the true leaves are damaged, the primary small black spots expand and become enlarged. Dark brown, round or irregular shaped lesions are purple in the edges. If the climate is dry, it is often cracked, and the leaves are dilapidated. Red-brown long strips of lesions can also be produced on petioles and stalks. Slightly concave, the diseased part is easily broken. In moist conditions, reddish-brown or orange-red mucilage is produced on the surface of lesions, ie, conidial spores of pathogenic bacteria. The lesion on the bell was dark red at the beginning. Afterwards, it gradually enlarged and sunken. The middle of the lesion became grayish-brown. There was also orange-red sticky material on it. The diseased bell rotted and formed a stale valve.
Prevention and control technology points: 1. Increase the use of farmyard fertilizers, and vigorously popularize agricultural measures such as straw returning, intensive cultivation, fertility improvement, improvement of soil, and increase of soil permeability, which can effectively control the occurrence of seedling disease. 2. The selection of disease-resistant varieties and the selection of excellent seed coating agents for coating are one of the effective measures to prevent the occurrence of diseases. 3, suitable for late broadcast. Appropriate late sowing can not only prevent seedling diseases, but also prevent premature aging of cotton and rotten bells. 4. For the use of trifluralin herbicide-treated cotton fields for many years, acetochlor herbicides should be replaced and the dosage should be strictly controlled. 5, ploughing. After the emergence of cotton, the ability to absorb inorganic nutrients is weak, the leaf area is small, and the organic nutrients produced by photosynthesis are insufficient. In the event of rainy weather, the ground temperature is difficult to increase, and the root growth is difficult, which also aggravates the occurrence of diseases. Therefore, through cultivating, raising the ground temperature is a necessary means to solve the seedling disease. And to do early, deep, diligent cultivator. 6, pharmaceutical control. Spray 1-2 humus foliar fertilizers after emergence to improve the resistance of cotton seedlings to low temperature and disease resistance. In the early stage of onset of spraying, 50% carbendazim or 70% thiophanate-methyl wettable powder 800 times liquid + 70% mancozeb manganese 600 times liquid, or xyloderol 3000 times liquid foliar spray is more effective. Spray once every 7 days, spray 2-3 times.
Apple Powder is a kind of Apple extract and a Fruit&Vegetable Power of our company. It is a light yellow
Powder , concentrated and dried from Apple fruits.
Apple is the apple of the apple subfamily of the Rose family, the tree is deciduous trees.Apple nutritional value is very high, rich in minerals and vitamins, rich in calcium, help to metabolize excess salt in the body, malic acid can metabolize
heat, prevent obesity in the lower body.Apple is a kind of food with low quantity of heat, produce the quantity of heat of 60 kilocalorie or so every 100 grams.
There are hundreds of apple varieties, which are divided into three categories: wine varieties, cooking varieties and fresh food varieties.The three varieties differ in size, color, aroma, smoothness (and perhaps brittleness, flavor) and other characteristics.Many varieties are high in sugar, moderate in acidity and low in tannin.In addition to being eaten raw, apples can be prepared in a variety of ways. They are often used as pastry fillings. Apple scones are probably the first American sweet.Fried apple often with sausage, pork chops and other dishes with food, especially in Europe is particularly common.The latest taxonomic evidence suggests there are just 38 species in the genus Apple.
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