Effect of organic, inorganic and nano fertilizers on agronomic traits of maize

Abstract EN

Integrated nutrient management is a judicious application of fertilizer from different sources for sustainable agriculture.

Two-year field experiment was conducted at the Agric.

Res.

and Exp.

Center, Fac.

of Agric.

, Moshtohor, Banha Univ.

, Kalubia Governorate, during the two growing seasons 2016 and 2017, to study the influence of three biogas sludge manure rates (0, 3.5, 7 ton/fed), four mineral NP fertilizer i.

e.

(N₀P₀, N₄₀P_7.5, N₈₀P₁₅, N₁₂₀P_22.5 kg/fed) and three levels of nano micronutrients foliar application (0, 100 and 200 g/fed) on growth, yield and its component of maize (Zea mays L.

).

The experiment was laid out in split-split-plot design with three replications.

Results of combined analysis of the two seasons showed that increasing biogas rate to 3.5 ton/fed significantly increased grain weight/ear as well as grain and biological yield/fed compared with control.

Yield components (ear length, grain weight/ear and 100-grain weight) as well as grain and biological yield (ton/fed) were significantly increased by increasing NP fertilizer levels up to N₈₀P₁₅ kg/fed.

Significant effect of nano micronutrients application on No.

of ears/plant and 100-grain weight at rate 100 g/fed and plant height, grain weight/ear as well as grain and biological yield/fed at rate 200 g/fed were detected.

Interaction effect between biogas x NP x nano had significant effect on ear length, grain weight/ear as well as grain and biological yield.

Treatment 3.5 ton biogas x N₈₀P₁₅ kg x 200 g nano/fed was the best treatment had 56.02% more grain yield, in comparison to control with increased soil fertility and saving 33.3% of mineral fertilizer compared with high fertilizer level.