Effect of nano urea and nano dap on the growth of jamun (Syzygium cuminii L.) graft cv. Konkan Bahadoli

The current investigation entitled “Effect of Nano Urea and Nano DAP on the growth of jamun (Syzygium cuminii L.) graft cv. Konkan Bahadoli” was conducted at College of Horticulture, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri. The experiment laid out Randomized Block Design (RBD) with twelve treatments and three replication viz., T1: Control, T2: Soil application (Urea 2g/plant), T3: Foliar spray Nano Urea @500 ppm, T4: Foliar spray Nano Urea @1000 ppm, T5: Foliar spray Nano Urea @ 1500 ppm, T6: Foliar spray Nano DAP @ 500 ppm, T7: Foliar spray Nano DAP @ 1000 ppm, T8: Foliar spray Nano DAP @ 1500 ppm, T9: Drenching Nano Urea @ 1500 ppm, T10: Drenching Nano Urea @ 2000 ppm, T11: Drenching Nano DAP @ 1500 ppm, T12: Drenching Nano DAP @ 2000 ppm. From this investigation, it concluded that treatment T11 i.e drenching Nano DAP @ 1500 ppm showed best result in survival percentage (97.52%), graft height (66.73 cm), graft girth (12.52 mm), number of leaves (15.13), leaf area (59.18 cm2), dry root weight (16.17 g), dry shoot weight (14.08 g) and treatment T6, i.e Nano DAP at 500 ppm, observed maximum root length of (26.58 cm). Thus, it concluded that drenching of nano DAP at 1500 ppm gives significant result on growth of graft.