Preparation of long-term fertilizer for spring planting
Long-acting fertilizer, also known as slow-effect fertilizer, is a type of chemical fertilizer with low solubility or slow nutrient release and long-lasting fertilizer effect. It is usually divided into synthetic slow-dissolving organic nitrogen fertilizer, synthetic slow-soluble inorganic fertilizer and coated fertilizer.
1. Long-acting fertilizer Compared with common chemical fertilizers, the characteristics of long-acting fertilizers are mostly applied to basal fertilizers. Applying them once can meet the nutrient requirements of the whole growing period of crops without top-dressing, which saves labor and solves the late stage of crop growth. Top dressing troubles.
2. When the application amount is large, the crops are not prone to burning seedlings, leggy, lodging, etc.
3, the selection of long-acting fertilizer varieties should be based on the type of soil and the type of crop. Urea formaldehyde should be applied to sandy soil. Urea acetaldehyde is suitable for pasture crops. Isobutylene diurea should be suitable for crops such as grasses, lawns, ornamental crops and fruit trees. Coated fertilizers are most suitable for rice under intermittent irrigation conditions. Good, synthetic slowly soluble inorganic fertilizer is suitable for orchards, lawns, flowers and seedbeds.
4. The price of one-time application of long-acting fertilizer is higher than that of ordinary fertilizer.
The vision training equipment includes the annular vision training system, which helps students to establish the concept of coordinate axis and Angle, enhance the vision field and the eye movement ability, train the visual cognition and visual tracking, and is conducive to the rehabilitation of low vision caused by amblyopia. If you would like to purchase Visual Training Equipment, Convenient Circular Vision Tracking Trainer, please contact us.
Visual Training Equipment
Vision Trainer,Visual Training Equipment,Convenient Circular Vision Tracking Trainer,Circular Vision Tracking Trainer
jinan Fangqi Sunshine education consulting CO.,LTD. , https://www.fzrehabmarket.com