Response of popcorn (Zea mays ssp.everta L.) to urea and sulfur fertilizer as well as foliar urea application
Journal Title: Annals of West University of Timisoara, ser. Biology - Year 2016, Vol 19, Issue 1
Abstract
A field experiment was carried out in private field (Abu-Garaq, 10 km west of Hilla city) during the autumn season of 2014 in silt clay loam soil, to study the response of popcorn to spraying urea under different soil fertilization levels of urea and agricultural sulfur. Split – split blot design in randomized complete blocks design (RCBD) in three replications was used. The factors were: soil fertilizer with urea (0, 100 and 200 kg ha-1) which were given symbols (U0, U100 and U200) respectively, and three agricultural sulfur levels (0, 10 and 20 kg ha-1) which were given symbols (S0, S10, S20) respectively, and two levels of spraying urea (spraying and control). The spraying was done twice (at 12 leaves stage and silk appearance stage at concentration of %0.05 even full wet) which were given symbols (A0, A1) respectively. The results showed that 200 kg ha-1 (U200) was superior significantly in ear rows number, grain number per row, the weight of 300 grain (19.42 , 45.5 , 45,2 g) . U100 and U200 caused a significant effect in plant yield (160.11 g and 157.98 g) and total grain yield (7.63 and 7.43 ton.ha-1) compared to control. Sulfur level 10 and 20 kg ha-1 (S10 and S20) was superior and gave the highest average of: ear rows number (18.97 and 18.77), weight of 300 grain (43.48 and 42.88g), respectively compared to control. Spraying urea (A1) was superior in ear row number (19.17). The interaction caused a significant effect in most of the studied traits.
Authors and Affiliations
Ali Husain JASIM, Muna Muhammad GHANEE
Keywords
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