TY - JOUR ID - TI - Effect of Compost and Humic Acid on Potato Growth and Quality AU - Tarif H. Bresim AU - Adel N. Abed Al-Redha AU - Abbas Kh. Mijwel PY - 2019 VL - 37 IS - 1 Part (c) special SP - 145 EP - 148 JO - Engineering and Technology Journal مجلة الهندسة والتكنولوجيا SN - 16816900 24120758 AB - Abstract- an experiment was carried out in Karbala on 10/9/2014 using thecompost of palm residues at four levels (0, 20, 30, 40) tan.h-1 and the humicacid in three concentrations (0,1.5, 3)ml.L-1 to determine the effect of thesefactors and their interaction in growth and quality characteristics of potatoand find organic fertilizer combination instead of chemical fertilizers. Theaddition of the compost of the residue palm has a significant and positiveeffect on all studied traits (Number of branches.plant-1, Plant height, percentof the dry weight of vegetative growth, percent of nitrogen, phosphorus andpotassium in tubers, ratio of total soluble solids in tubers, percent of starch intubers, the market yield of the plant), While not affecting on not valid for themarketing year. Spraying of the humic acid caused a significant increase in allthe mentioned characteristics except for the percent of phosphorus in thetubers and the not valid for marketing yield. Interaction between palm wastecompost and humic acid had a significant effect on the studied indicatorsexcept for the percent of phosphorus in the tubers and the not valid formarketing yield of the plant.

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