تأثير التغذية الورقية بسماد اليونغرين في حاصل الحبوب ومكوناته لمحصول الذرة الصفراء (Zea mays L.)

Abstract

AbstractTwo experiments were conducted in Yousfiah,which is forty five kilometers from south east Baghdad during fall seasons of 2005 and 2006 to find out the effect of foliar spray of unigreen fertilizer at two dates (the completion of 10 leaves and completion of 14 leaves) and four conc. (0, 12.5,25 and 37.5 gm 20 liters water) on grain yield and it's components of corn in a factorial experiment in RCBD with 3 replications, Results showed that the 2nd date with 37.5 gm/ 20 liter water gave the highest mean values of grain no./ Ear (473.31 and 483.26) weight of 100 grain (26.11 and 26.24gm) yield / plant (123.45 and 124.61gm) and grain yield (8.23 and 8.30) ton / ha. The control treatment on the other hand resulted in lowest mean values of the abovementioned parameters. This study showed that foliar spray with 37.5 gm/ 20 liters water mean values when plants have 10 leaves and spray was repeated at 14 leaves were completed accomplished better results regarding the characteristics studied.