Comparison of  Some Treatments on limiting the effect ofirrigation water salinity on Pea (Pisum Sativum L.)

	Comparison of Some Treatments on limiting the effect ofirrigation water salinity on Pea (Pisum Sativum L.)
Euphrates Journal of Agriculture Science
Article 1, Volume 7, Issue 1, 2015, Pages 34-48
Abstract
Abstract : The aim of the study is to compair the effect of the irrigation water salinity for Pea (Pisum Sativum L.) (verity Early Onward) . A farm study was carried out in the research field – extension farm in Al-Mhnawia which is directed by the training and extension center in Babylon / general organization of Agriculture cooperation and extension –Iraqi Ministry of Agriculture) during the winter season of 2012-2013 , the silt clay soil of the farm has a salinity range of 2.752-4.787 dS.m-1, according to the RCBD design, 12m2 for experimental unit area , six lines , three replicates ,and two treatments : The first is water quality incorporation three irrigation types: continuous irrigation with river water (average Ec=1.088 dS.m-1) (I1) , alternating irrigation by salinity drainage water with River water (I2) and continuous irrigation with Salinity Drainage water (average Ec=5.44 dS.m-1) (I3) , deplete a 75% of the available water. The second include sprinkle of Nutrients Potassium Sulfate K2SO4 2000 mg.1-1(K) , Hormone GA3 200 mg.l-1(GA3) and Plant Extract (Liquorice root extract) 4gm.l-1(L) . Results of the study can be summarized as follows :- Continuous irrigation with Salinity Drainage water a significantly decreased of plant content of Potassium , ratio of K: Na, and increased content for Na, Cl and the total product of dried seeds. The alternative irrigation was found to significantly restrict this effect and show an increase the Potassium , K:Na ratio, and decrease content for Na, Cl. as well as increase in the total product of dried seeds. The addition of (Nutrient, Hormone, Plant Extract) led to significant increase in the Potassium contents , a decrease in sodium and significant increase in the K:Na ratio with respect to GA3 and k factors while L shows an increase in the sodium and reduction in the K:Na ratio . Additives also led to significant reduction of the ionic chloride . Results were show, that all treatments led to a significant increase in number of branches, number of pods and the total yield of dry seeds , with respect to the treatments K and L and significant decrease with respect to the treatment GA3 at concentration of 200 mg.l-1 .

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