First, the use of basal fertilizer in general basal fertilizer accounted for about 70% -80% of the total amount of fertilizer. Basal fertilizer is dominated by organic fertilizers, combined with phosphate fertilizers. Generally, 2500-5000 kg of high-quality organic fertilizer is applied per acre. If nitrogen fertilizer is used as a base fertilizer, 13-20 kg of ammonium hydrogen carbonate or 3-5 kg ​​of urea can be applied per acre, and it must be deepened to prevent loss of nitrogen volatilization. In the phosphorus-deficient soil, 30-40 kg of superphosphate is applied per acre; in a potassium-depleted soil, potassium fertilizer may be appropriately applied half, and potassium chloride 15-25 kg per acre is generally applied; on a zinc-deficient soil, per acre Zinc sulfate 1-2 kg is used as base fertilizer. If nitrogen and phosphate fertilizers are used as base fertilizers, they should be concentrated or applied.
Second, with a good fertilizer fertilizer diammonium as a relatively safe seed, phosphorus and potassium fertilizer as a mixed fertilizer has a significant effect. Urea, etc. as seed fertilizer, to more than 10 cm away from the seeds to avoid burns. A small amount of farmyard fertilizer can also be used as a fertilizer, generally 300-500 kg of high quality organic fertilizer should be applied per acre. Urea dosage is 3-5 kg ​​per mu or 7-10 kg of diammonium phosphate. In the case of using more basal fertilizer, less or no fertilization can be applied, and vice versa.
Third, the time, frequency and quantity of top-dressing top-dressing fertilizer should be comprehensively considered according to factors such as the appearance of corn, fertilizer-demanding period and growth period. Phosphorus and potash fertilizers have long-lasting effects and can be used as base fertilizer or seedling fertilizer at one time. Miao fertilizer per acre followed by superphosphate 25-35 kg, potassium chloride 10-15 kg. The topdressing of nitrogen fertilizer can be lightly followed by three-step top dressing method: Miaofei account for 30% of the total top-dressing fertilizer, reclaiming panicle fertilizer, and supplementary grain fertilizer. After the seedlings are applied at the jointing stage, there are strong seedlings and seedlings for promoting seedling growth. The role of strong stalks; ear fertilizer accounted for about 50% of the total topdressing, applied in the big bell-mouth period of corn, can make the ears spike large and large, lay the foundation for the high yield of corn; 20% of the total top-dressing fertilizer for grain fertilizer points, applied from tasselling to flowering To ensure nutrient supply in the later stage of corn growth, extend the functional period of green leaves, and promote grain yield and grain weight to obtain high yield.
At ancient times, people picked up wild fruits, and they found the magic of Goji , The pictograph word "qi" in Chinese character just like a man knelt down at a Goji tree , the left of the character "qi" seems like a tree, and the right like a person bowed down. That means as early as four thousand years ago, people found that Goji can keep fit and role of longevity ,Goji has magic power to people`s life.
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