INFLUENCE OF IRRIGATION INTERVALS AND CHEMICAL FERTILIZATION ON SENNA (Cassia acutifo/ia, Delile) PLANTS: I. EFFECT ON GROWTH AND POD PRODUCTION | ||||
| Journal of Plant Production | ||||
| Article 9, Volume 28, Issue 12, December 2003, Page 8365-8380 PDF (980.17 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2003.246340 | ||||
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| Authors | ||||
| A. S. El-Leithy,1; H. A. Mansour1; E. l. EI-Maadawy1; K. A. Hammam2 | ||||
| 1Ornamental Horticulture Department, Faculty of Agriculture, Cairo University. | ||||
| 2Medicinal and Aromatic Plant Research Department, Horticulture R"ear~h Institute, Agricultural Research Center, Dokky, Cairo, Egypt. | ||||
| Abstract | ||||
| This study was conducted at the Department 01 Ornamental Horticulture. Faculty 01 Agriculture, Cairo Unillersity, Giza, and the Farm of Medicinal and Aromatic Plants, Faculty of Pharmacy. Cairo Unillersity, Giza, during the two successjvs seasons of 1997 and 1998, with the aim of inllestigating the effect of Irrigation intervals and chemical NPK fertlJJzaUon on the lIegetatilie growth and production of pods in senna (Cassia acuU(olia, Delile) plants. Cassia acutifolia plants were irrigated ellery 1, 2 or 3 weeks, and were supplied with chemical NPK fertilization using combinations of N at the rates of 0, 25, 50 or 75 kg/fed. (No, N" Nz and N), respectively), P20S at 0,25 or 50 kg feddan (Po, P, and Pa, respectively) and K20 at 25 kglfed. (K,). In acoitton, plants receilling no chemical fertilizaUon (NoPoKo) were used as the control; Irrigation ellery 3 weeks galle the highest mean values for plant height, number of branches/plant. fresh and dry weights of lsaves and stems/plant, whereas irrigation ellery 2 weeks galle the highest mean values for pods production (number 01 pods/plant, and the fresh and dry weights of pods/pian!)' All fertilization treatments promoted lIegetatilie growth and pod production, with N2P,K, gilling the tallest ptants. Fertilization with N3P2K, galle the highest mean values for fresh and dry weights of leaves/plant, while the highest fresh and dry weights of stems/plant were obtained from plants fertilized with N3P,K, Of N3P2K,. On the other hand, HZP2K, gelle the best pods production. Moreoller, combining this treatment (N2P2K,) with irrigation ellery 2 weeks galle a better production of pods, compared to any other combination of irrigation Intervals and fertilization treatments, whereas the highest fresh and dry weights of lealleslpJent were obtained with weekly irrigation + N3P~K,. The highest fJ:esh weight of stems/plant was obtained when irrigation ellery 3 weeks was combined with fertilization u5ing NJP,K" while lhe highest dry weight of stems/plant was obtained when irrigation at 3 weeks was combined with fertifization using N3PoK" N3P,K, or N3P2K,. | ||||
| Keywords | ||||
| Senna; Cassia aculitolia; fertilization; NPK; irrigation intervals | ||||
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