Effect of water stress and fertilization with inorganic nitrogen and chicken manure on vegetative growth charachters of potato
2010
Kandil, A.A. | Attia, A.N. | Badawi, M.A. | Sharief, A.E. | Abido, W.A.
The main results of this investigation could be summarized as follows: The results indicated that there was a significant effect on plant height, leaf area/plant, number of stems/plant, fresh and dry weights of plant foliage as well as total chlorophyll content as a result of irrigation tension in both seasons, except plant height in the first season only. However, irrigation tension did not affect number of leaves/plant in both seasons. Irrigation at 26cb (5360.17 m. water/ha) i.e. 54.1% moisture from field capacity produced the highest averages of plant height, number of leaves and stems/plant, leaf area/plant, fresh and dry weights of plant foliage in both seasons. While, irrigation at 22cb (6209.32 m. water/ha) i.e. 59.3% from field capacity recorded the highest averages of total chlorophyll content in both seasons. Fertilization treatments had a significant effect on all studied characters during both seasons. Application of 60% inorganic nitrogen fertilizer (238 kg N/ha) + 40% organic chicken manure (158 kg N/ha) markedly recorded the highest values of these characters, except chlorophyll content which resulted from application of 100% mineral nitrogen fertilizer (396 kg N/ha) as compared with other fertilization treatments. The interaction between studied factors had a significant effect on plant height, leaf area/plant and number of stems/plant in both seasons as well as fresh weight of plant foliage in the second season. Irrigation at 26cb (5360.17 m. water/ha) i.e. 54.1% moisture from field capacity in addition fertilization with 60% inorganic nitrogen fertilizer (238 kg N/ha) and 40% organic chicken manure (158 kg N/ha) markedly recorded the highest averages of these characters as compared with other fertilization treatments.
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