|Author:||Khalil, F. A. ; Rayan, A. A. ; Mohamed, E. I. ; El-Aref,K. A. O.|
|Book Group Author:||NA|
A field experiment was conducted in Shandaweel, Egypt, in 2000 and 2001 to study the effect of irrigation regime (0.7, 1.0, and 1.3 evaporation pan coefficient or EPC), and N (100, 120, and 140 kg/feddan) and K (0, 24, and 48 kg/feddan) rates on maize cv. TWC 310. N as urea and K at potassium sulfate were applied before the first and second irrigation. The recommended EPC for maize irrigation was 1.0. The seasonal water consumptive use, irrespective of irrigation and fertilizer treatments, was 1931.7/feddan in 2000 and 2064.6/feddan in 2001. N at 120 kg/ha was most effective in enhancing grain yield, plant height, 100-grain weight, and protein and K contents. The increase in K level gave a corresponding increase in plant height and grain yield. Water use efficiency increased with increasing N and K rates. Irrigation based on 1.0 EPC and the application of 140 kg N/ha and 48 kg K/ha were optimum for higher grain yield and water use efficiency.
|Pages:||97 - 115|
|Journal:||Assiut Journal of Agricultural Sciences|
application rates, chemical composition, crop yield,irrigation, irrigation scheduling, maize, nitrogen fertilizers, nutrientcontent, plant composition, plant height, plant nutrition, plant waterrelations, potassium, potassium fertilizers, protein content, seedweight, water use efficiency, yield components, Zea mays, Zea, Poaceae,Cyperales, monocotyledons, angiosperms, Spermatophyta, plants,eukaryotes, chemical constituents of plants, corn, potash fertilizers,watering, Field Crops (FF005) (New March 2000), Plant Composition(FF040), Plant Nutrition (FF061), Plant Water Relations (FF062), PlantProduction (FF100), Fertilizers and other Amendments (JJ700), Soil WaterManagement (Irrigation and Drainage) (JJ800) (Revised June 2002)[formerly Soil Water Management]