RESPONSE OF MAIZE (Zea 1nays,L.) TO POTASSIUM AND IRON FERTILIZATION
ABDEL-AZIZ TALAAT ABDEL-AZIZ BONDOK;
Abstract
Two field experiments were conducted at the Research and Experimental Station of the Fac. of Agric., Moshtohor in
1998 and 1999 seasons. The aim ofthis study was to investigate
the effect of foliar application with potassium and iron elements on tasseling and silking dates, some growth characters chllorophy content grain yield and yield components as well as grain quality of maize cv. T.W.C. 321. The soil was a clay texture having an alkaline reactions (pH 7.8) .Organic matter content was 1.91 %, the available N, P, K and Fe were 21 ,11,
281 and 8 mg /kg soil, respectively. The experimental design was a randomized complete block with four replications. Three potassium levels (zero, 365, and 730 cm3 K20/fed) and three iron treatments (zero, 31.2 and 62.4 g I fed) were randomly located
in the plot. The plot area was 16.8 m2 (3 x 5.6 m2 11250 fed) and
contained 8 ridges, 3m in length and 70cm apart . The distance between plants was 30cm.
The preceding crop was Egyptian clover in both seasons. Potassium was in form ofK -liquid (36.5% K20). Iron was in form of chelated (organic) material (Fe-EDTA, 13% Fe). Foliar application with potassium and iron were done once, 4 and 5 weeks after planting, respectively. Spray solution was 400 1/fed. Plants were thinned to one plant/hill before the 1st irrigation and the distance between hills was 30 em.
1998 and 1999 seasons. The aim ofthis study was to investigate
the effect of foliar application with potassium and iron elements on tasseling and silking dates, some growth characters chllorophy content grain yield and yield components as well as grain quality of maize cv. T.W.C. 321. The soil was a clay texture having an alkaline reactions (pH 7.8) .Organic matter content was 1.91 %, the available N, P, K and Fe were 21 ,11,
281 and 8 mg /kg soil, respectively. The experimental design was a randomized complete block with four replications. Three potassium levels (zero, 365, and 730 cm3 K20/fed) and three iron treatments (zero, 31.2 and 62.4 g I fed) were randomly located
in the plot. The plot area was 16.8 m2 (3 x 5.6 m2 11250 fed) and
contained 8 ridges, 3m in length and 70cm apart . The distance between plants was 30cm.
The preceding crop was Egyptian clover in both seasons. Potassium was in form ofK -liquid (36.5% K20). Iron was in form of chelated (organic) material (Fe-EDTA, 13% Fe). Foliar application with potassium and iron were done once, 4 and 5 weeks after planting, respectively. Spray solution was 400 1/fed. Plants were thinned to one plant/hill before the 1st irrigation and the distance between hills was 30 em.
Other data
| Title | RESPONSE OF MAIZE (Zea 1nays,L.) TO POTASSIUM AND IRON FERTILIZATION | Other Titles | استجابة الذرة الشامية للتسميد بالبوتاسيوم والحديد | Authors | ABDEL-AZIZ TALAAT ABDEL-AZIZ BONDOK | Issue Date | 2000 |
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