Effects of different water and fertilizer ratios on the growth and leaf contents of"Liaoning No.1"Juglans regia
In order to explore the effects of different fertilization treatments on the growth and leaf contents of Juglans regia trees in the mature J.regia garden in mountainous areas,this experiment took"Liaoning No.1"J.regia as the test material,with the goal of saving water and fertilizer,improving tree nutrition as the target,and applied fertilization once in each period based on the growth period of J.regia.Through the application of different fer-tilization combinations to screen the appropriate fertilization period.The results showed that the tree growth index,leaf nutrient index and chlorophyll content of all water and fertilizer treatments were significantly better than those of the control treatment.The traditional three fertilization treatments had better performance in tree growth and leaf contents,but there was no significant difference between the two fertilization treatments in the indexes of leaf mineral elements and soluble sugar content.All the indexes of one fertilization were sig-nificantly lower than those of three fertilization treatments,indicating that appropriate re-duction of water and fertilizer had little effect on the growth of J.regia tree and the indexes of leaves.In conclusion,it could be reduced by reducing one time of water and fertilizer to a-chieve the purpose of reducing costs,saving water and fertilizer in the production.
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