EFFECT OF DIFFERENT IRRIGATION SYSTEMS AND POTASSIUM AND PHOSPHORUS LEVELS ON MAIZE. | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 6, Volume 1, Issue 7, July 2010, Page 713-721 PDF (408.85 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2010.75158 | ||||
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| Authors | ||||
| M. W. M. El-Agrodi1; H. A. Shams El-Din2; G. Labeeb1; T. S. H. Khalifa2 | ||||
| 1Soil Dept. Fac. of Agric., Mansoura Univ., Egypt . | ||||
| 2Soil, Water and Environment Res. Inst., A.R.C., Egypt. | ||||
| Abstract | ||||
| A field experiment was conducted during summer season of 2008 in Sakha Agricultural Research Station Farm; Kafr El-Sheikh Governorate. This study aimed to clarify the effect of different irrigation systems and potassium and phosphorus fertilization levels on maize crop. The obtained results can be summarized in; - Irrigation systems and fertilization levels interaction significantly affect maize grain yield. The highest value of maize grain yield (2.14 ton/fed) was recorded under furrow irrigation system + 125% of P and K recommended dose treatment. - Increasing P and K fertilizations levels from 50 to 125% of the recommended dose caused an increase in maize stalks yield amounted by 45.11%. The highest mean of maize stalks yield (5.250 ton/fed) was recorded under furrow irrigation system + 125% of P and K recommended dose. - Furrow irrigation improved maize grain potassium utilization by 24.43% than that of sprinkler irrigation. Potassium uptake by maize grain of furrow irrigation system + 125% of P and K recommended dose treatment was higher than that of sprinkler irrigation system + 50% of P and K recommended dose treatment by 94.53%. - Furrow irrigation system recorded the highest value of phosphorus uptake by maize grain (8.033 kg/fed) compared with other irrigation systems. 125% of P and K recommended dose recorded the highest value of P uptake by maize grain (9.53 kg/fed) compared with the other fertilization treatments. - Furrow irrigation system decreased maize water use efficiency by 35.37 and 63.30% less than that of drip and sprinkler irrigation systems, respectively. The highest value (1.64 kg grain / m3) of water use efficiency for maize was recorded under drip irrigation system + 125% of P and K recommended dose. | ||||
| Keywords | ||||
| Maize; K uptake; P uptake; irrigation system; water use efficiency | ||||
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