Method of diagnosis for forest tree nutritional equilibrium
A diagnostic method and tree technology, applied in the field of afforestation, can solve problems such as inaccurate judgment of the nutritional balance of forest trees
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[0026] Through the influence of N, P, and NP nutrition on the growth of Chinese fir seedlings and the distribution of photosynthetic products, the relationship between the root-to-shoot ratio R / S and the nutritional balance of forest trees was analyzed:
[0027] Under different nutrient stress conditions, the pattern of accumulation and distribution of photosynthetic products in Chinese fir seedlings is different. In the state of N and P deficiency, increasing the supply of N causes the accumulation of photosynthetic products in 2-year-old seedlings to transfer from roots and stems to leaves; For 1-year-old seedlings, applying P could transfer photosynthetic products from roots to stems and leaves; different from applying phosphorus to 1-year-old seedlings, applying phosphorus to 2-year-old seedlings could transfer photosynthetic products from stems to roots.
[0028] In the state of sufficient N nutrition and P deficiency, the effect of NP fertilizer application on the dry mat...
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