Abstract
To study the response of maize hybrids to organic manure and micronutrients NPs application. In this regard, two field experiments were conducted at the Experimental Farm, Faculty of Agriculture (Saba Basha), Alexandria University during 2018 and 2019 seasons at factorial experiments (two factors) in a split-plot system in three replicates. Where, the main plots allocated by farmyard manure rates (0, 10, 20 m3), while, the sub-main plots assigned with nano- practices of micronutrients (NPs) (spray water (control), nano- Fe, nano-Zn, nano- Mn, nano- Fe + Mn, nano-Fe + Zn and Fe + Zn + Mn) in both seasons. The results revealed that ear length (cm), number of rows/ear, number of grains/row, number of grains/ear, 100-grains weight (g), grain yield (t/fed), straw yield, biological yield (t/fed), harvest index (%) and grain protein content (%) of maize hybrid were, significantly, affected by organic manure and micronutrients NPs application, where soil application of sheep manure at the rate of 20 m3/fed with foliar application of combination between nano- Fe + nano- Zn + nano- Mn increased yield and its components of maize hybrid ‘TWC1100’ under the conditions of Alexandria, Egypt.
Highlights
INTRODUCTIONfarmyard manure (FYM) can increase the availability of nutrients for plant uptake; it improves soil physical properties such as structure and water holding capacity and creates a suitable environment for the activity of soil microorganisms (Mwahija, 2015)
Maize is the third most important staple food crop in terms of area and production after wheat and rice in Egypt
Keeping in view the importance of farmyard manure (FYM) and nano- micronutrient for the crop, the study was conducted to find out the optimum organic manure and micronutrients nano- practices of micronutrients (NPs) rates and their interaction for getting a higher yield of maize
Summary
FYM can increase the availability of nutrients for plant uptake; it improves soil physical properties such as structure and water holding capacity and creates a suitable environment for the activity of soil microorganisms (Mwahija, 2015). Micronutrient deficiencies such as limited zinc (Zn) availability are one of the main problems limiting agricultural productivity, especially in alkaline calcareous soils. Keeping in view the importance of FYM and nano- micronutrient for the crop, the study was conducted to find out the optimum organic manure and micronutrients NPs rates and their interaction for getting a higher yield of maize
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