The Effects Of Plant Spacing And Previous Silvicultural Operations On Old Sexaul Forage Quality Of Planted Forests In Yazd province
2007
Baghestani Maybodi, N., Assistant Prof. Yazd Agricultural and Natural Resources Research Center. | Zare, M.T., Senior Expert of Range Management, Yazd Agricultural and Natural Resources Research Center. | Shamszadeh, M., Expert of Plant Pests and Diseases. Yazd Agricultural and Natural Resources Research Center.
The saxaul forage in planted forests of desert areas is usable for animal. So, it is important to determinate their forage quality. In fact, the objective of this study was to determine the effects of different plant spacing and cutting levels on them. The study was carried out in obviously wilted planted saxaul forest that is located in Ashkezar desert region of Yazd province. Experiment was conducted in split-plot design with main-plots that had 250 and 125 shrubs per hectare and sub-plots were 3 types of cutting 10, 35 and 70 centimeter above ground surface and with control (no cutting). Cutting was done on Autumn 1994. The studied filed was protected and forage quality of marked shrubs were analyzed on Autumn 2000. The results showed that plant spacing and cutting levels treatments has no significant effects on saxaul forage quality (p'' 0.05). The product forage on 35- centimeter cutting height that is desirable method contains: 7.47 Mj/Kg metabolism energy, 13.14 % crude protein and mineral matters Ca, P and Na , 2.106%, 0.098% and 7.15% respectively.
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