Adding organic fertilizers and improving soil physical and chemical properties Soil organic matter has a significant effect on the activation of iron. The amount of organic matter directly affects the content of available iron. Adding organic fertilizer can also improve the soil structure and prevent soil compaction, thereby increasing the effective iron content. Therefore, the application of organic fertilizer is an important measure to improve ferritin nutrition, and it is also the fundamental method to prevent iron deficiency in apple trees. There are many methods for applying iron fertilizer. The methods used should not only consider the difference of site conditions, but also the results of apple trees and the age of the trees. 1 soil iron fertilizer: combined with autumn application base fertilizer, 0.15 kg ~ 0.2 kg of ferrous sulfate mixed in each organic fertilizer. This method is preferably not used in an alkaline orchard to prevent the iron element from being solidified and not being absorbed by the roots. 2 Foliar spray iron fertilizer: During the growth of fruit trees, 0.3% to 0.5% of ferrous sulfate and ferric citrate are sprayed on the foliage, usually every 10 to 15 days, and sprayed continuously for 2 to 3 times. If foliar spray iron fertilizer is used on the result tree, organic iron fertilizer should be selected as much as possible to avoid the uncleanness of the fruit surface caused by the fertilizer. 3 dry injection: the result of heavy iron deficiency in the opponent, the most commonly used and best effect is 0.15% ~ 0.1% ferrous sulfate solution injection branches. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone China Extract Powder For Use As Dietary Supplement Extract Powder, Extract Powder Manufacturer Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.bodybuildingoil.com
There are ways to prevent iron deficiency in apple trees
Choosing a suitable site environment to avoid garden construction in areas with high pH, ​​soil viscosity, easy slab formation, high groundwater level and salinity, create a good ecological environment conducive to the growth of apple trees, and also pay attention to the choice The rootstock resistant to yellowing is good.