1 , anti-premature aging
If the water is too much during the growth of the corn, the soil will be deprived of oxygen, the root activity will be weakened, and the water absorption will be difficult. However, at this time, the transpiration of the leaves is not reduced, which may cause physiological metabolic disorders, leaf curling, growth retardation, and thus lack of fertilizer. Plants are short and even withered. Prevention methods : Rainy areas should be done with drainage and anti-staining work. If there is a trend of premature aging or yellowing of leaves, it should be applied as early as possible to apply fertilizer or foliar application of phosphate fertilizer. In addition, the application of plant ash or potassium sulphate during the seedling period can also prevent premature aging.
　　 2 , anti-air stalk
Insufficient supply of mineral resources, nutrient imbalance, not satisfied with the nutrient requirements during the ear differentiation stage, or excessive density, poor photosynthesis, more nitrogen fertilizer, less phosphorus and potassium fertilizer will cause empty stalks. Prevention method: The planting density is reasonable, and it is required that the large-scale corn is not sealed, to ensure the ventilation and ventilation, to supply nutrients and water in a timely and appropriate amount, and to properly mix nitrogen, phosphorus and potassium. More fertilizers are applied to the plots with poor fertility, and more fertilizers should be applied to the plots with high fertility in order to grow long and strong stalks. In the differentiation stage of the ear, it is necessary to topdress the fertilizer.
　　 3 , anti-deficient and bald
Phosphorus deficiency in the soil, the ear of the corn will collapse, and the elongation of the filament will also slow down, affecting natural pollination, which will lead to baldness and even empty ears. The soil is deficient in potassium, and the carbohydrates are transported to the grain, and the grain starch is also bound to be small. In addition, early damage to insects, wind damage or flowering, rain pollination, pollination, etc. can cause baldness, mites or empty grains. Prevention methods: The key is to prevent pests and diseases, apply more phosphorus and potassium fertilizer, and timely watering when drowning. It is best to carry out artificial pollination during flowering.
　　 4 , anti fall
The density of seedlings is too large, and the management of fertilizer and water in the stalk elongation period is improper, which easily causes lodging and affects the yield. Preventive measures: deepen the tillage layer, increase the application of base fertilizer, and combine the appropriate cultivation of the soil to make the corn stabilize the root frame. Fertilization pay attention to the combination of nitrogen, phosphorus and potassium, and the plant density is suitable to ensure that the leaves in the growing season receive enough sunlight to make the plants thick and strengthen the lodging resistance.
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This Fushi Brand Hardboard , the most famouse brand hardboard in China . It is popular with its reasonable price and good quality .
The hardboard made by plant fibre . High compressive strength , easy to process , with anti-flaming function .
It is a good material for home interior finish .
Hardboards Details
density:900KG/M3
glue: E2 glue
thickness:2.5mm,3.0mm,3.2mm
one face is very smooth, the other is mat.
used for back of furniture or packing
Hardboard , Hardboard Manufacturer , Hardboard Factory , Hardboard for Decoration,Pine Scaffold Wood Board
Fushi Wood Group , http://www.fushiplywood.com