Maize sown to jointing stage for seedling stage, corn seedling period is the stage of long root, increased leaf and stem section differentiation.
1, water management. Maize seedling stage due to smaller plants, leaf area is small, low transpiration, water demand is small. Soil moisture should be maintained at 65-70% of the maximum water capacity in the field. Maize seedlings have the characteristics of tolerance to drought and drought. Proper drought is conducive to promoting roots and strong seedlings. Absolute soil moisture content of 12-16% is more appropriate, too much water in the soil, lack of air, easy to form yellow seedlings, purple seedlings, causing "bud buds", seedlings should pay attention to heavy rain in case of flood prevention.
2, and time seedlings, Dingmiao. Timely seedlings and seedlings are important links for reducing the rate of weak plants, improving the uniformity of the population, and ensuring reasonable close planting. When the young seedlings and young seedlings reach the seedlings too early, the differentiation of the seedlings' potential is not obvious. After the seedlings are established, diseased plants, weak plants, and stubble plants will continue to emerge. Miaomiao, Dingmiao too late, due to crowded seedlings, roots staggered, competing for fertilizer to compete for water, the formation of weak seedlings. Master 3 leaf visible time seedlings, 5 leaf visible seedlings. Interplanting corn is usually more grass, more insects, more broken seedlings, seedlings difficult to maintain, should be appropriate time seedlings, set seedlings slightly later, grasping 3-4 visible leaf time seedlings, 5-6 leaf visible seedlings. Dingling should be done to weak seedlings, leaving strong seedlings; to large seedlings and weak seedlings, leaving the same size of the seedlings; to sick and disabled seedlings, leaving healthy seedlings; to hybrid seedlings, leaving pure seedlings.
3, timely cultivator, weeding. The cultivator should be shallow before and after seedling establishment, usually about 5 cm. The cultivator should be deeper before and after the jointing period, and the distance between the rows can reach about 10 cm. Seedlings are usually cultivated twice. Chemical weeding methods: that is, spraying herbicides on the surface before emergence after sowing can also be carried out at the seedling stage. 1 Atrazine (atrazine), sprayed with 40-50 kg of active ingredient per acre, sprayed before and after emergence of weeds to control annual weeds and broad-leaved weeds. 2 Acetochlor, with 70 grams of active ingredient per acre plus 40-50 kilograms of water, after sowing corn, spraying before emergence, can control annual grass weeds. 3 Ethylene suspoemulsion (acetochlor + atrazine), 250-250 ml of water per acre, 40-50 kg, sprayed after sowing and before emergence.
4, timely fertilizer, watering. Fertilizers at the seedling stage are root-enhancing, strong seedlings, and leaf-promoting and strong culms. They are usually carried out after the seedlings are set to the jointing stage. The three types of seedlings with thin seedlings, thin leaves, long yellow leaves, and inadequate nutrition are transplanted and seedlings must be applied as early as possible, and the topdressing amount should be increased. Interplanting corn is usually thin yellow lean seedlings, growth is weak, immediately after the former to collect seedlings fertilizer. The three types of seedlings should be topped with fertilizer after the top dressing and watered in timely manner in order to give full play to the fertilizer effect. The amount of topdressing fertilizer in the seedling stage will, in principle, be applied to all phosphorus and potassium fertilizers. The amount of topdressing nitrogen fertilizer will be determined due to the land and seedlings.
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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