In the senescence period, the growth of the peach tree branches has weakened, the growth of the prolonged branches has decreased, the growth of the big branch groups has become weak, the middle and small branch groups and the small and medium fruit branches have largely lost, and the tree crown has been bare to varying degrees. Pruning is mainly heavy shearing, shearing, and renewing the backbone branches. The use of leggy branches and prosperous branches to renew the canopy maintains tree vigor and maintains a certain yield. The backbone branches can be cut to 1-2 years old, and shortened to 3-5 years old year by year. Care should be taken to maintain the main lateral branch's affiliation during contraction and shearing, or to replace weak branches with appropriate large branch groups. The leggy branches that occurred during this period should not be neglected and should be used to fill gaps. The branches and branches should be ameliorated by shrinking and renewing, leaving more preparation branches, eliminating thin and weak branches, and concentrating nutrition so as to benefit the results. However, it is still advisable to prepare for replacement as soon as possible so as to maintain high quality fruit and better results.
The United States Food and Drug Administration (FDA) has published the Dietary Supplement Health and Education Act (DSHEA), which provides for dietary supplements. A product (other than tobacco) intended to supplement the diet may contain one or more of the following dietary ingredients: A vitamin, a mineral, an herb (herbal) or other plant, an amino acid, a food component used to increase the total daily intake to supplement the diet, or a concentrate, metabolite, component, extract or combination of the above ingredients, etc. It also includes approved new drugs, vitamins or biologics that have been marketed as dietary supplements or food products before they are approved, issued or licensed. The DSHEA defines dietary supplements as their composition and labeling requirements: the product form may be pill, capsule, tablet or liquid; The product shall not be used as a substitute for ordinary foods or as an exclusive dietary item. The product shall be labeled as a "dietary supplement".
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