EFFECT OF TOW COMBINATION SPRAYING BY IRON AND MANGANES SULFATE ON GROWTH TRAITS OF THREE SOYBEAN CULTIVARS

Abstract

A field experiment was conducted in a loamy sand texture soil during summer season of 2009 . In the falluja City of Al – Anbar Governorate to study the effect of spraying three levels of Iron and Manganese sulfate mixed together ( 0 , 50+50 and100+100) mg/L in growth traits of three soybean cultivars ( LS 74 , Jeza 22 and Jeza 83 ) A factorial experiment arrangement in randomaized complete block design ( R.C.B.D.) with three replicates . The most important result were: Soybean cultivars showed a different significant in all traits except the number of tellers /plant . The cultivar LS74 gave a highest average in : plant height , number of nods in the stem , leaf area ,leaf area index and highest of first pod . While the cultivar Jeza 83 gave a lower rate in number of days from planting to flowering and number of days from planting to maturity.The spraying of Iron and Manganese showed that a significant effect for all traits except the highest of first pod from the soil . Spraying the level (50+50 ) mg/L gave a highest rate in : plant height ,number of nods / stem ,number of tellers / plant , leaf area , leaf area index and lower number of days from planting to flowering .while spraying the level ( 100+100 ) mg/L gave a lower rate in number of days from planting to matur only .The interaction between cultivars and spraying Iron and Manganese was significant effect in leaf area index and number of days from planting to maturity . But this interaction was not significant in other traits .