Effect of Mineral and Nano Nitrogen Fertilizers on Yield and Yield Components of Some Yellow Maize Hybrids

Abstract

Two field experiments were conducted at the Experiment and Research Center, Fac. Agric., Moshtohor, Benha Univ., during 2018 and 2019 summer seasons. The aim of this was to study response of three yellow maize hybrids (SC 2055, SC 176 and SC P3737) to three N fertilizer rates (06, 06 and 120 kg N fed-1) and two Nano-N foliar applications (Without and Nano foliar applications). The experimental design was randomized complete block design (RCBD) using split split-plots arrangement with three replications. The yellow maize hybrids, N fertilizer levels and Nano-N foliar applications were arranged at random in the main plots, sub-plots and sub sub-plots, respectively. Single Cross P3737 was significantly earlier than the other hybrids regarding 50% tasseling and silking. Also, SC P3737 was superior to the other two hybrids in most of the studied traits. The highest values of plant height, ear length, ear diameter, No. grains row-1 , ear weight, ear grains weight, 100-grain weight, Forge yield fed-1 and grain yield fed-1 were obtained with fertilizer level of 120 N fed-1. On the other hand, the earliest tasseling and silking were recorded with 06kg N fed-1. Nano foliar application gave the greatest of all grain yield and attributes of yellow maize hybrids as compared with untreated. It could be concluded that under the conditions of the experiment, planting SC P3737 under 90 or 120 N fed-1 and nano foliar application is recommended.

Effect of Growth Enhancer on Growth and Productivity of Maize (Zea mays L.)

“…The similar results has been recorded by Kumar et al [25]. El-Gewely et al [26], Rajesh [13], Reddy et al [19], Samui et al [17], and Yasser et al [20]. Significant increase in stover yield with application of GE 20.0 ml per litre+100% RDF was attributed to increased growth parameters viz., plant height, stem diameter, leaf area index led to higher total dry matter production per plant over other treatments.…”

“…The results are in line with Asghar et al [27] who noticed the higher stover yield of maize by foliar nutrition of multinutrient solutions over RDF alone. Addition of nitrogen has greater role in increasing the vegetative growth of the plant; thus, increasing the activity of photosynthesis resulting in greater accumulation of dry matter in the grain and nitrogen has its role in prolonging the period of full-grain and delaying senescence of leaves (El-Gewely et al [26]. Progressive significant increase in dry matter accumulation was mainly attributed to increase in growth factors like plant height.…”