Title: Effect of slow-release nitrogen fertilizers on maize plants grown on new reclaimed soil.
Abstract:A field experiments was done in summer 2009 season at private farm, located at El -Sadat district, Minufiya Governorate, Egypt to evaluate the effect of ureaform or urea+hm ic acid as slow release nit...A field experiments was done in summer 2009 season at private farm, located at El -Sadat district, Minufiya Governorate, Egypt to evaluate the effect of ureaform or urea+hm ic acid as slow release nitrogen fertilizers at a rate of 60 and 100 kg fed -1 compared to urea at rate of 120 kg fed-1 on maize (Zea mays L.) (Single-cross 10) grown on sandy soil. The obtained results indicated that ear length, plant high, 100 -grain weight, shoot and grain yields and biological yield were markedly significantly higher when application of ureaform at rat e of 100 kg N/fed followed urea at rate of 100 kg N/fed + hum ic acid. Application of ureaform at high rate increased the values of nitrogen uptake by both shoot and grain of maize plant, while urea at high rate + humic acid induced the highest values of bo th phosphorus and potassium uptake for the same mentioned organs. Also, the results ind icated that, maize plants received urea+humic acid or ureaform registed the highest values of fertilizer use eff iciency, i.e., highest Agronomic efficiency and Apparent N recovery were obtained due to application of 60 kg N/fed urea+humic acid, while ureaform at rate of 100 kg N/fed gave the highest value of Physiological efficiency.Read More
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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