The growth of fruit trees can not be separated from water and nutrient. This paper mainly describes the fertilization of fruit trees and fruit trees water and fertilizer integration technology.
First of all, let's understand the characteristics and purposes of fertilizer demand of fruit trees in different periods:
1. Results At the early stage of fruit tree: fertilizer requirement characteristics: double phosphorus and nitrogen and potassium.
2. Fruit trees in full fruiting period: Need fertilizer Characteristics: large demand for n, P, k combined with K.
3. Aging fruit trees: Need fertilizer characteristics: nitrogen fertilizer mainly, combined with phosphorus and potassium, fertilization purpose: renew and rejuvenate, prolong the fruiting period.
It is a complicated problem to apply fertilizer to fruit trees, which should be determined by considering tree species, variety, tree age, tree potential, results, fertilizer property and soil fertility, etc.
To give a few examples: generally, apple trees and grapes need more fertilizer, while plum and jujube need less fertilizer. Young trees, flourishing trees, bearing little, adult trees, weak trees, bearing much. Mountain, sandy orchards, poor soil, fertility needs to be more. Ensure fruit quality and safety level at least to reach the level of pollution-free agricultural products.
When fertilizing fruit trees, the most important thing is to choose the right irrigation fertilizing method.
Integrated technology of water and fertilizer
The integration of water and fertilizer is a water-saving agricultural technology that USES the pipe irrigation system to dissolve the fertilizer in water, conduct irrigation and fertilization, meet the demand of water and nutrients for crops in a timely and appropriate amount, and realize the synchronous management and efficient utilization of water and fertilizer.
If the traditional irrigation method is adopted, the water consumption will be large, the disease will be serious, reduce the earth temperature, the nutrient loss, affect the product quality and so on.
The integrated technology of water and fertilizer is widely used. At present, the integrated technology of water and fertilizer has been widely popularized in all parts of the country in the production of field crops such as cotton, potato, corn and fruit trees, solar greenhouse vegetables, etc., as well as in desertification control, barren mountains and road greening.
