The Role of Levels and Times of Application of Super Micro Plus Nanofertilizer on some Growth Characteristics and Stems Yield of Sugarcane Saccharum officinarum L.

Abstract

A field experiment was carried out in one of the agricultural fields of Muqdadiya region during the season 2022-2023 to study the role of spraying with nanofertilizer called Super Micro Plus at levels (0, 1, 2 and 3) g/L as a first factor and with spraying times (the beginning of the tillering stage, the beginning of the elongation stage, and the beginning of the maturity stage) as a second factor in some growth characteristics and stems yield of sugarcane, variety Cp 89. The experiment was carried out according to a completely randomized blocks design with three replications, and the data were analyzed statistically, the results showed the following: 1. The use of nanofertilizer at a level of 2 g/L resulted in a significant increase in the number of total stems, stem height, stem diameter, leaf area and number of green leaves, as they reached 57.8, 160.7 cm, 30.7 mm, 1126.1 cm2/plant and 10.1 leaf/plant respectively. It also caused an increase in the mean of stems yield, reaching 61.5 tons/ha, with an increase of 56.1 %. 2. The spraying of nanofertilizer at the beginning of the tillering stage resulted in a significant increase in the number of total stems, stem diameter, leaf area and number of green leaves, reached to 61.6, 31.8 mm, 1127.9 cm2/plant and 9.9 leaf/plant respectively, and a decrease in the mean of stem height, as it reached to 155 cm. It also caused an increase in the mean of stems yield as it reached 53.6 tons/ha. 3. Spraying the plants with nanofertilizer at the level of 2 g / L at the beginning of the tillering stage resulted in highest increase in the mean number of total stems, stem diameter, leaf area and number of green leaves, reached to 69.4, 33.1 mm, 1187.5 cm2/plant and 11.7 leaves / plant respectively. And a decrease in mean of stem height, as it reached 153 cm. It also achieved the highest significant increase in the mean of stems yield, reached to 66 tons / ha, an increase of 67.5 %.