| Abstrakt: |
The experiment was conducted at the Northern Technical University / Mosul/ Iraq during 2019/2020 season, to investigate the response of red cabbage for the application of some nano-fertilizers. The study content two factors, the first one three types of nano-fertilizers (Nano-Zn (12% Zn), Nano-Fe (6% Fe), and Nano-NPK (12:12:36%), with concentration 2 gm. L−1 spraying on leaves and 4 gm. L−1 applying on soil, second factor was three application methods of fertilizer (spraying on leaves, applying on soil, and spraying+applying on soil). The experiment included 12 treatments (4X3) with three replicates conducted in Randomized Complete Block design (RCB D). The seeds of (TEBA) cultivar were grown in 15/9/2020 in germination trays with peat moss medium only. After the seedlings reached the stage of fifth real leaf, they were transferred and transplanted into the pots that were previously prepared for the experiment (30 cm diameter containing a mixture of 75% of Lomey soil and 25% of animal manure) on 28/10/2020, the application of nano fertilizers was two times the first one after 21 days of transplanting in 19/11/2019 and the second after 30 days of the first one. At the end of the season, measurements were recorded (Plant length(cm.), Number of leaves number per plant, plant Leaf area (cm2)., Fresh, dry weight of plant (gm.)., Chlorophyll content in the leaves is measured by SPAD, Dry matter percentage in leaves., Dry matter percentage in roots.). The results revealed that spraying nano –Fe inreas leaf area (1815.1 cm2) and Chlorophyll content in leaves (58.97 SPAD), dry matter in roots (31.88%), average head weight (208.11 g.), and total yield (6936.93 t.h−1). The combination treatments between nano –Fe and Spraying+ Soil application method gave the highest values of Chlorophyll content in leaves (62.10 SPAD), average head weight (212.92 g.), and total yield (7097.26 t.h−1). [ABSTRACT FROM AUTHOR] |
