الخلاصة

΃ ) ΓΪϤѧδϤϟ΍ΏϮѧΒΤϟ΍ΓέΫΎѧΑϝΎϤόΘѧγΎΑΏέΎѧΠΘϟ΍Εάѧϔϧ . ΔѧϳΪϴϠϘΘϟ΍ΔѧϘϳήτϟΎΑΔѧΑήΘϟ΍ΔΌϴϬΗΕΎϴϠϤϋ ΖϳήΟ΃ .ΔϴϨϳήϏΔϴϨϴσ ϦϴϠϣΎѧϋήϴΛ΄ѧΗΔѧγ΍έΩϞѧΟ΃Ϧѧϣ MF-285 S ϥϮѧδϛήϴϓϲ γΎϣΔΒΣΎѧδϟ΍ϭΝϭΩΰϤϟ΍ϲλήϘϟ΍ΝΎΠϔϟ΍Ε΍Ϋ ( S.Z-3.6 ΝΎΠϔϟ΍ω΍έΫϰϠϋξΑΎϨϟ΍ςϐοΓϮϗϞϣΎϋϭˬΎγ/Ϣϛ ( ˺˺ϭ ̂ϭ ̀ ϭ ˾ )ΕΎϳϮΘδϤϠϟέ΍άΒϠϟΔϴϠϘΤϟ΍Δϋήδϟ΍ΎϤϫ ϢϴϤѧμΗϞϤόΘγ΍ .ΔϴλήϘϟ΍ΓέΫΎΒϟ΍˯΍Ω΃Ε΍ήηΆϣξόΑϲϓˬϦΗϮϴϧ ( ˿˾˹ϭ ˾˾˹ ϭ ˽˾˹)ϲϫΕΎϳϮΘδϣΙϼΜΑ έ΍άѧΒϟ΍ωήѧγϭΔδϴ΋ήϟ΍Ρ΍ϮϟϷ΍ξΑΎϨϟ΍ςϐοΓϮϗΖϠΜϣΫ΍ˬΔϠϣΎϜϟ΍Δϴ΋΍Ϯθόϟ΍ΕΎϋΎτϘϟ΍ϢϴϤμΗϖϓϭΔϘθϨϤϟ΍Ρ΍ϮϟϷ΍ ϦϤ πΗ . ˹˹˾ Δ ϴϟΎϤΘΣ΍ϯϮΘ δϣΪ ϨϋΕΎτ γϮΘϤϟ΍Ϧϴ ΑΔ ϧέΎϘϤϠϟ L.S.D έΎ ΒΘΧ΍ϞϤόΘ γ΍ˬΔ ϳϮϧΎΜϟ΍Ρ΍Ϯ ϟϷ΍Ζ ϠΜϣ ϊѧϳίϮΗϡΎѧψΘϧ΍Ε΍ήѧηΆϣϭΩϭΪѧΧϷ΍ΔΣΎѧδϣϭ ΝΎΠϔϟ΍ϞϤϋϖϤϋςγϮΘϣϞΜϣΕ΍ήηΆϤϟ΍ϦϣΔϋϮϤΠϣΔγ΍έΩΚΤΒϟ΍ ϰ ϟ΍ΔϓΎ ο·ϲ ϘϓϷ΍ϭϲѧγ΃ήϟ΍ϦϴϳϮΘ δϤϟ΍ϲ ϓέϭά Βϟ΍ϊѧϳίϮΗϡΎ ψΘϧ΍ϭέϭά Βϟ΍ϖ ϤϋϲѧϓΔ ϠΜϤΘϤϟ΍ϭΔ ΑήΘϟ΍Ϟ Χ΍ΩέϭάѧΒϟ΍ .Ε΍έΩΎΒϟ΍ύϭΰΒϟΔϳϮΌϤϟ΍ΔΒδϨϟ΍ :ϲΗϻΎΑΚΤΒϟ΍Ξ΋ΎΘϧϢϫ΃κΨϠΘΗϭ ϝϮѧμΣϰѧϟ΍ Δϋήδϟ΍ΓΩΎϳίΕΩ΃ϦϴΣϲϓˬΔϴϨϜϤϟ΍ΓΪΣϮϠϟΔϴϠόϔϟ΍ΔϴΟΎΘϧϹ΍ΓΩΎϳίϲϓΔϴϠϘΤϟ΍Δϋήδϟ΍ΓΩΎϳίΖϤϬγ΃ Δϋή δϟ΍ΓΩΎѧϳίΖΒΒѧδΗ Ϛϟάѧϛˬ ϡΪѧϬϟ΍ΔΣΎ δϣϲѧϓΔѧϳϮϨόϣΓΩΎѧϳίϭΝΎѧΠϔϟ΍Ϟ ϤϋϖѧϤϋςѧγϮΘϣϲѧϓϱϮѧϨόϣνΎѧϔΨϧ΍ ϲѧϓήѧϴΒϛνΎѧϔΨϧ΍ϝϮѧμΣϰѧϟ΍ϯΩ΃ΎѧϤϣΔѧΑήΘϟ΍ϞѧΧ΍ΩέϭάѧΒϟ΍ϊѧϳίϮΗΕ΍ήѧηΆϤΑϝϼѧΧϹ΍ϲѧϓϩϼѧϋ΃ΕΎϳΪѧϤϠϟΔϴϠϘΤϟ΍ .Ε΍έΩΎΒϟ΍ύϭΰΒϟΔϳϮΌϤϟ΍ΔΒδϨϟ΍ ςѧγϮΘϣϭΝΎѧΠϔϟ΍ϞѧϤϋϖϤϋςγϮΘϣΕ΍ήηΆϣϲϓΔϳϮϨόϣΓΩΎϳίϰϟ΍ΝΎΠϔϟ΍ω΍έΫϰϠϋξΑΎϨϟ΍ςϐοΓϮϗΓΩΎϳίΕΩ΃ ϡΪѧϋϞѧϴϟΩΕΎϔѧλΔѧϳϮϨόϣΓέϮѧμΑΖѧπϔΨϧ΍ΎѧϤϨϴΑˬΕ΍έΩΎѧΒϟ΍ύϭΰΒϟΔϳϮΌϤϟ΍ΔΒδϨϟ΍ϭΩϭΪΧϷ΍ΔΣΎδϣϭέϭάΒϟ΍ϖϤϋ .έϭάΒϟ΍ϦϴΑΔϓΎδϤϟ΍ϡΎψΘϧ΍ϡΪϋϞϴϟΩϭϖϤόϟ΍ϡΎψΘϧ΍ ςϐѧοΓϮѧϗΓΩΎѧϳίϥ΍ΪѧΠϧϭˬΚѧΤΒϟ΍ΕΎϔѧλϲѧϓΔѧϳϮϨόϣΓέϮμΑξΑΎϨϟ΍ςϐοΓϮϗϭΔϴϠϘΤϟ΍Δϋήδϟ΍ϦϴΑϞΧ΍ΪΘϟ΍ήΛ΍ ϲѧϓΔѧϳϮϨόϣΕ΍ΩΎѧϳίΙ΍ΪѧΣ΍ΐѧϋέ΍άѧΒϟ΍Ε΍ήѧηΆϣϦϴѧδΤΗϲѧϓϢϬγ΍ΔϴϠϘΤϟ΍ΔϋήδϠϟΔϔϠΘΨϤϟ΍ΕΎϳϮΘδϤϟ΍ΪϨϋξΑΎϨϟ΍ ϖѧϤόϟ΍ϡΎѧψΘϧ΍ϡΪѧϋϞѧϴϟΩϦѧϣϞѧϛϲѧϓΎѧϳϮϨόϣΎѧοΎϔΨϧ΍ϭΕ΍έΩΎѧΒϟ΍ύϭΰ ΑΔΒѧδϧϭέϭάΒϟ΍ϖϤϋϭϡΪϬϟ΍ΔΣΎδϣ ϦϣϞϛ .έϭάΒϟ΍ϦϴΑΔϓΎδϤϟ΍ϡΎψΘϧ΍ϡΪϋϞϴϟΩϭ Effect Of Seeding Speed And The Compression Force Of Loading Spring On Disc drill Performance A.J.J.ALKHAFAJI A.A. ALSSABAGH Kufa University Baghdad University Agriculture College Agriculture College Abstract This research was conducted at the Kufa Technical Institute (silty- clay loam soil). The experiments was carried out with a double disk drill (S.Z-3.6) and MF-285 S tractor in order to study the effect of increasing seeding speed with ( 5, 7, 9 ,11 Km/h) and three spring compression force levels (450, 550 , 650)N on some of seeding performance indicators( mean operation depth , furrow shape , seed depth, seed distribution uniformity at the vertical and horizontal levels and percentage of seedlings emergence).A (R.C.B.D) in a split plot design used to conducting the experiments , L.S.D test at 0.05 probability was used to compare among the means. The compression force of spring represented the main plots, while the seeding speed represented the sub plots. The main results of this research are summarized as follows: The increasing in seeding speed resulted in a significant increasing in the practical productivity, while it is lead to violating the seed distribution indicators at the verticaland horizontal levels, that resulted in a weakness of the germination and emergence indicators . Increasing spring compression force resulted in a significant increases in the operation depth, furrow shape, percentage of emergence, while decreased the seed distribution indicators at the vertical and horizontal levels .