استجابة أصناف اللهانة للرش بمستخلص Brassica oleracea var. capitata L. و الحاصل و بعض Kو N السماد العضوي (سعف النخيل)‎ و تأثيره في محتوى الأوراق من الصفات النوعية للرؤوس

Abstract EN

A field experiment was conducted in two locations, the Al-Mahanawyie district / Abo-Gharaq in the province of Babylon and in Al-Sahla district / Kufa in the province of Al Najaf Alashraf in the growing season of 2012-2013 to study the response of three cabbage cultivars to spraying with compost extract of date palm leaves.

The experiment included 12 treatments due to the interaction between three cultivars of cabbage (Copenhagen Market, Ruby Perfection and Tropicana) and four concentration 0, 25, 50 and 75 ml.L-1 of organic fertilizer extracts.

The experiment was Randomized Complete Block Design (RCBD) with three replications.

Results can be summarized as following : Results showed that cv.

"Tropicana" had significantly the highest plant leaf number, leaves content of N, head weight, total productivity and head quality characteristics (protein and carbohydrate percentages), while "Copenhagen Market" cv.

was significantly eminent in terms of K percentage only compared to cv.

"Ruby Perfection" which gave the lowest values for the above characteristics.

Spraying results revealed that all concentrations of compost extract had significant effects on the above characteristics compared to spraying with distilled water which gave the lowest values.

Interaction between cv.

and spraying with compost extract showed in significant where (50 ml.L-1 with Tropicana) resulted in the highest values of plant leaf number, leaves content of N, head weight, total productivity and head quality characteristics protein and carbohydrate percentages 66.87,67.39 leaf plant-1 and 4.07 % and 2.83,0.97 kg and 47.41, 26.90 Ton.h-1 and 25.50,23.58 % and 2.88,2.76 % for both locations, respectively except percentage of N that was the highest in location 2, the interaction of (50 ml.L-1 × Copenhagen Market) had significantly the highest percentage of K (3.90,3.84 %) for both locations, respectively compared to interaction of (distilled water with Ruby Perfection) which gave the lowest values of plant leaf number, leaves content of N, leaves content of K, head weight, total productivity and head quality characteristics protein and carbohydrate percentages 44.87,40.42 leaf plant-1 and 2.22,1.47 % and 2.45, 2.27 % and 1.55,0.22 kg and 23.96,16.61 Ton.h-1 and 15.61,14.19 % and 1.72,1.56 % for both locations, respectively.