Fertilization management of grape seedlings

In the grape seedling stage, the NPK fertilizer should be applied once every 15~20 days, and each application of NPK (20-20-20) water soluble fertilizer 25~30 grams per time, with clear water or biogas slurry or tanning After 3~5 kg of decomposed human and poultry manure water, it is evenly applied to the soil around the roots of the grape seedling plants, and it is better to completely penetrate the soil into the soil without the outflow. It is also possible to apply 40 to 50 grams of potassium sulphate or potassium sulphate or pure sulphur-based compound fertilizer per plant per plant, and to dig deep around the grape seedlings 30 to 40 cm away from the grape plants. And the circular shallow groove of 25~30 cm wide, spread the fertilizer evenly in the circular shallow ditch, cover the soil. In addition, at the same time as fertilization at the root, it is necessary to carry out root dressing and supplement various nutrients from the foliage. During the growth of grape seedlings, 0.1% magnesium sulfate, 0.1% zinc sulfate, 0.2% urea, 0.3% potassium dihydrogen phosphate, and 600 times amino acid active liquid fertilizer mixture must be sprayed every 10~15 days to evenly spray all the sprays. It is advisable to start with drops of water. After being sprayed with rainwater within four hours after spraying, it must be re-sprayed once to improve the effect of foliar topdressing. Huang Jiannan

Farmers Daily

Cell Culture Plate

Disposable Cell Culture Plate,Cell Culture Plates,Flat Bottom Cell Culture Plates

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