First, the application time of nitrogen fertilizer The general producer believes: "The application of nitrogen fertilizer in the spring can be effective for the flowering of the year and the result." This view is wrong.
Nitrogen is generally in the form of nitrate nitrogen and ammonium nitrogen. After absorption and utilization by fruit trees, the two available nitrogens are converted into nitrate nitrogen and then converted into nitrogen dioxide, which is combined with carbohydrates to form amino acids. In the tree body. Although the time of this transformation process is not yet clear, it will definitely take a long time, rather than being completed within a short time (quick effect). Therefore, the application of nitrogen fertilizer in the spring is not effective for flowering and flower bud differentiation in the current year.
Scientific point of view: Nitrogen is best applied in autumn, that is, before the deciduous fruit trees. Tiansheng Gold Peptide Amino Acids contain high levels of organic nitrogen nutrition and can be directly used by plants to supplement plant nutrients without being absorbed and transformed. This is the preferred product for rapid remediation after a disaster. Coupled with its small molecular weight (75 ~ 204), strong penetration, is the best choice for fruit trees painted dry top dressing.
Second, the depth of fertilization General producers believe that: "Fertilizer should be deep in order to prevent loss." This view is wrong.
After fertilizing fruit trees, many water-soluble mineral elements such as calcium, potassium, etc., are easy to leak with the irrigation, irrigation of water, deep infiltration of the soil to a certain depth, the more the number of irrigation, the more leakage . The conventional fertilization depth is generally 40 to 50 cm. After fertilization, the leakage is serious as the number of irrigation times increases, and the fertilizer utilization rate is extremely low.
Scientific point of view: Whether it is Shiji fertilizer or top dressing, the role of shallow roots should be considered. The depth of fertilization should be between 10 and 20 cm below the surface.
Third, the depth of cultivators General producers believe that: "The cultivator should be deeper, in order to increase the conservation effect and suppress weeds." This view is wrong.
Japan's fruit tree expert Kazuyuki Ichida said: "The deep roots of fruit trees act as a fixed tree, determining the role of growth; shallow roots play a role in determining flower bud differentiation and fruit quality." In order to promote flower bud differentiation and improve fruit quality, it is necessary to protect the roots of the 10-20 cm below the ground of fruit trees.
Scientific point of view: To clear the orchard, you only need to scratch the soil surface and cut off the capillary of the soil. Japanese grass orchards have not been cultivating or cultivating for many years, and their organic matter content ranges from 2% to 3%.
IV. Methods of irrigation General producers generally use flood irrigation. This method is wrong.
After flood irrigation, the roots of some fruit trees in shallow soils will be deficient in oxygen, resulting in death and hardening of the soil.
Scientific point of view: Advocating the use of drip irrigation or infiltration irrigation is not only beneficial to the development of the tree, but also saves water, labor and time, and reduces the occurrence of diseases.
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