TY - JOUR ID - TI - THE IMPACT OF SEVERAL ANIMAL MANURE TYPES IN COMPARISON WITH UREA ON GROWTH AND YIELD OF MAIZE (Zea mays L.) تأثير عدة أنواع من المخلفات الحيوانية مقارنة مع سماد اليوريا على نمو و أنتاج الذرة الصفراء ( Zea mays L ) AU - Mohammed A.W Hameed1, Naje H. Khalaf Hamad N. Farhan محمد عبد الوهاب حميد ناجي حمد خلف حماد نواف فرحان PY - 2017 VL - 9 IS - 2 SP - 28 EP - 39 JO - Euphrates Journal of Agricultural Science مجلة الفرات للعلوم الزراعية SN - 20723857 AB - This study was conducted at the Research Station of the College of Agriculture, University of Anbar, to evaluate the effects of different manure sources (Poultry manure, Sheep manure and Cow manure), used as organic fertilizer, and chemical fertilizer (Urea 46%N) on the growth , contents of chlorophyll, carbohydrate and nutrients of maize plants (Zea mays L.). Experiment was laid out in Randomized Complete Block Design (RCBD), with three replications having five treatments: control (without any fertilizer), sheep manure (SM): 32 ton ha-1, cow manure (CM): 32 ton ha-1 and poultry manure (PM): 18 t ha-1 and chemical fertilizer (CF) 300 kg N ha-1. Poultry manure showed significantly higher values of all recorded parameters followed by sheep manure, whereas cow manure showed little or insignificant differences, compared with CF. Poultry manure exceeded CF in almost all recorded parameters of growth (plant height, number of leaves, leaf surface area, and biomass production) and the content of chlorophyll, carbohydrate and nutrients N, P and K concentrations in maize leaves. The advantages in using animal manure were ascribed to more availability and uptake of nutrients throughout the growing season, improved soil organic matter and other soil properties favoring biomass production rather than CF application. The study showed that poultry manure was the best alternate source to urea fertilizer for growth and development of maize plants at the rate of 18 t ha-1under the conditions of this experiment.

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