الاستجابة الكمية و النوعية لدرنات صنفين من البطاطا للرش بالمغذي الورقي Setter-2

Abstract EN

An experiment was carried out in special fields for spring growing season of 2013 in Abu- Ghraib (40 km west of Baghdad) to study the effect of the treatments of spraying nutrient setter-2 in qualitative and quantitative characteristics of potato tubers cultivars (Alaska and Safari) .

The treatments of spraying nutrient included Setter-2 solution at three concentrations (0.8 , 1.6 and 3.2 ml.L-1) besides control treatment with using Randomized Complete Block Design in split – plot, the cultivars was considered as main-plot and spraying nutrient solution as sub – plot with three replications.The results showed that cv.

Safari gave a higher effect than cv.

Alaska in almost of markers studied ) number of air branches in plant and number of marketable tubers and number of total tubers and dry matter nand starch percentage in tubers) except N% and Ca% levels in tubers while caltivars gave no significant effect in weight of marketable tuber and boron concentration in tubers .

Also the spraying with setter-2 nutrient (1.6 ml.L-1) led to give a significant effect in most of parameters studied .

It was also noticed that spraying with nutrient solution (0.8 ml.L-1) gave a higher dry matter percentage and starch content in tubers while the level of nitrogen and boron was affected by spraying with nutrient (3.2 ml.L-1) significantly compare to control treatment.

However ,interaction between experiment factors gave a significant effect in all markers studied .