EFFECT OF DIFFERENT LEVELS AND DATES FROM AGRICULTURAL SULFUR IN THE AVALIABLE IRON IN THE SOIL AND ITS CONTANING IN PLANT FOR TWO CULTIVARS OF WHEAT

Turki M.Saad Abdulkareem H.Hassan Anmar H.Kadhim water &soil Science Dept. Ministry of Agriculture water & soil Science Dept. Coll. of Agric./ Univ. of Al-Muthanna Coll. of Agric./ Univ. of Al-Muthanna

Abstract:
A field experiment was conducted in an field of the wheat research station that located in the Al-Warka locality northeast of Al-Muthanna province during the autumn season 2014-2015 in order to study the effect of different dates and levels of agricultural sulfur that added to the soil planted with a two cultivars of wheat Triticum aestivum L. on available iron and its content in plant before planting stage and at flowering. A randomized complete block design with a style of split split plot with three replicates. The results showed that the agricultural sulfur addition at level 2000 Kg S ha-1 was a significant effect to increasing the soil contain of available iron before planting and at flowering because of its effect of decrease pH soil were its values was 7.14 and 7.25 for the both stages before planting and at flowering sequentially, the level 2000 Kg S ha-1 gave the highest mean of iron in the soil which were 4.15 and 4.05 mgFe kg-1 soil, the added date in September gives a highest mean for the avaliable iron in the soil before planting which were 3.68 mgFe kg-1 soil, also the added date in December gave a highest mean for the avaliable iron in the soil which were 3.27 mgFe kg-1 soil in flowering stage. Achieved the level of added 2000 Kg S ha-1 and the added date in December the height mean of iron in the plant which were sequentially 628.7 and 553.44 mgFe kg-1 dry matter in the flowering stage. And about the cultivars, IPA-99 gave the highest mean of available iron in the soil in flowering stage which were 3.20 mgFe Kg-1 soil, the cultivars did not affect significantly in iron content of plant in the stage of flowering. Interaction between the added levels, added dates and cultivars gave the highest means for the available iron before planting and at flowering.
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AL-Muthanna Journal of Ag ricultural Scie nce s | Volume : 4 | No : 1 | 2016

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