Document Type : Research Paper
Abstract
A field experiment was carried out in the Hawija province /Kirkuk government in one a farmer field through spring season of 2019 to aim study of the effect of ground addition of humic acid and foliar spray of potassium on the growth and yield of spring season of the maize (Zea maize L.) cadez variety. The study carried out as a (RCBD)design with )and 1-three replicates, the experiment included four levels of humic (0,8.16 and 24 kg.h .The result showed as followed)1-concentrations of potassium (0,5 and 10 g.Lthree
of the humic surpassed significantly in the excess of leaf area, onsconcentrati1 -24kg. .hplant height, ear rows number, row grain number, grain yield and protein percentage %) 8.51and 1-,7.53ton.h1-,33.30grain.row 1-cm, 16.08 row.ear,189.92 2 cm 517.87(of the potassium surpassed significantly in concentrations1 -10 gm.Lrespectively. Also the excess of leaf area, plant height, ear rows number, row grain number, grain yield and
2020 ) مجلة جامعة کرکوک للعلوم الزراعیة المجلد ) 11 ( العدد ) 4
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1-8.29 ton.h,1-, 33.61 grain.row1-, 16.77 row.ear,189.86 cm2 protein percentage(501.97 cmand 8.98%) respectively.
)showed significantly superior 1-+10g.L1-The interaction between the two factors (24.kg.h in the all traits which studied : of leaf area, plant height, ear rows number, row grain , 1-196.66 cm, 17.10 row.ear ,2number, grain yield and protein percentage(540.39 cm . %) respectively10.04and 1-8.49ton.h, 1-grain.row
Main Subjects