THE INFLUENCE OF TWO APPLYING METHODS OF MICRONUTRIENTS MIXTURE WITH DIFFERENT LEVELS OF NITROGEN FERTILIZATION ON SUNFLOWER PLANTS GROWN UNDER SANDY SOIL CONDITIONS.

Document Type : Original Article

Authors

Crops Physiology Res. Sec., Field Crops Res. Inst., Agric. Res. Center, Giza, Egypt.

Abstract

Field experiments were conducted at Ismailia Agric. Res. Station during the two
successive seasons of 1999 and 2000 to study the effect of applying methods of
micronutrients mixture ( Fe + Zn +Mn) as coating seeds or foliar spray in combination
with four different levels of nitrogen fertilizer; i.e. , 30 , 60 , 90 and 120 kg N/fed on
sunflower.plant 'Euroflower hybrid' under sandy soil conditions. The results revealed
that:
1- Coating sunflower seeds by mlcronutrlents mixture (Fe +Zn + Mn) increased
significantly plant height, leaf area I plant, specific leaf weight, stem diameter, seed
yield I plant and seed yield Ifed compared to foiiar spary method with
rnlcronutrtients. mixture of Fe, Zn and Mn . Also, coating method increased oil
content, protein content, oil and protein yields Ifed compared with foliar application
one.
2- Increasing nitrogen fertilizer from 30 up to 120 kg N/fed increased significantly plant
height, leaf area I plant , specific leaf weight , stem diameter , head diameter,
100-seed weight, seed yield I plant and seed yield I fed Also, protein content , oil
and protein yields I fed increased with raising nitrogen levels. While , oil content
decreased with raising nitrogen levels.
3- The interaction between applying methods of micronutrients mixture and nitrogen
fertilization showed no statistical effect on all characters under investigatiorr.--
It could be concluded that coating sunflower seeds with rnicronutrients mixture
( Fe + Zn + Mn ) with adding 120 kg N/fed gave the highest productivity of sunflower
plants; i.e, seed yield Ifed , oil and protein yields.

Keywords

Journal of Plant Production
Volume 27, Issue 10
October 2002
Pages 6557-6566

Files

Share

How to cite

Statistics