Test of nano-fertilizer and different irrigation intervals on yield and growth characteristics of maize Zea mays L.


The experiment was conducted in the autumn season (2020 AD) using the (RCBD) design and with three replications, in which the first factor tested the NPK nano fertilizer neutral consisting of four levels (N1, N2, N3, N4) (0,75,150,225) PPM sequentially, the NPK was equidistant, added twice the first with The seeds when planting. The second sprayed after a month of planting. The second factor uses different irrigation intervals consisting of three (F1, F2, F3) (4,6,8) days. The results of the experiment showed that the nano-fertilizer was significantly superior to Treatment N3 in all studied growth traits and yield, to give it the highest rate of traits: plant height, number of leaves, chlorophyll content, number of rows/horn, the weight of 500 grains, total dry matter yield, total grain yield per unit area, which amounted to (212.48 cm) , (14.04), (51.11), (13.51 row/cob), (136.83 g), (10.32 tons/ha) and (22.92 tons/ha) according to the order. As for the irrigation intervals, the irrigation interval was distinguished (F1) and was significantly superior to the other irrigation intervals, except for the irrigation interval F2, which was distinguished in the height of the plant to give it the highest rate (203.95 cm). The interaction was significant for nano fertilizer and irrigation intervals, where the two combinations of N3F1, N3F2 recorded the highest values for plant height (234.14, 234.23 cm), number of leaves (15.13, 15.00 leaves/plant), chlorophyll content (55.31, 55.99 cci), number of rows on the cob (14.26, 14). 13. row/cob), weight of 500 grains (143.62, 143.60 g), total grain yield (11.85, 11.79 ton/ha) and dry matter yield (25.76, 25.63 ton/ha) in order and without significant difference between them for the above traits.