EFFECT OF ROOT ZONE TEMPERATURE ON NUTRIENT UPTAKE IN SOILLESS CULTIVATION SYSTEMS | ||||
| Misr Journal of Agricultural Engineering | ||||
| Article 3, Volume 38, Issue 2, April 2021, Page 111-122 PDF (981.32 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/mjae.2021.62429.1026 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Abdallah G. Abd Elmaged  1; Taha H. Ashour2; Samir A. Ali2
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| 1PhD Stud., Ag. Eng. Dept., Fac. of Ag., Benha U., Egypt. | ||||
| 2Prof., Ag. Eng. Dept., Fac. of Ag., Benha U., Egypt. | ||||
| Abstract | ||||
| The main objective of this research is to evaluate the Effect of root zone temperature on nutrient uptake in soilless cultivation systems and to obtain the best reused rate for nutrients after treatment and Fertigation management in closed soilless culture systems and Fertilizer calculator for each element’s at long time of plant. The experiment was carried out in a multi-Spanish agricultural greenhouse covered with polyethylene film and aspects covered with fiberglass. There is a cooling system for evaporation (pad and fan), a heating system roots and a control in the irrigation and fertilization process. Agricultural soil is composed of bitmous, perlite and vermiculite. The obtained results indicated that the closed soilless culture systems with intermittent irrigation and heating the root zone (T1) the best from than all treatments systems closed soilless culture systems with intermittent irrigation (T2), closed soilless culture systems with irrigation once and heating the root zone (T3) and closed soilless culture systems with irrigation once (T4) in terms of uptake nutrients (Nitrogen (N), Phosphorus (P), Potassium (K), Calcium (Ca) and Magnesium (Mg) and The best absorption of water was the treatment of the closed soilless culture systems with intermittent irrigation and heating the root zone and the best growth parameters which include plant height, internode length, stem diameter, number of leaves, leaf area, mass of fruit and yield was the treatment of the closed soilless culture systems with intermittent irrigation and heating the root zone. | ||||
| Keywords | ||||
| Nutrients; soilless culture; fertigation; irrigation; root zone | ||||
| References | ||||
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