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Foliar and topdressing application of nitrogen to the common bean crop PAB
Kotz-Gurgacz,Tailene Elisa; Soratto,Rogério Peres; Guidorizzi,Fernando Vieira Costa.
Abstract: The objective of this work was to evaluate the effect of applying N sources to leaves and N rates to the soil on the growth, N uptake, and grain and crude protein yields of the common bean (Phaseolus vulgaris) crop. Three experiments - two irrigated and one rainfed - were conducted during the 2012/2013 agricultural season, in a randomized complete block design with four replicates. The treatments consisted of the application of: four N rates (0, 45, 90, and 180 kg ha-1) to the soil, as topdressing in the V4 stage; and five N sources/rates - i.e., control, without foliar N application; 2.5 kg ha-1 N as conventional urea (N-CU); 5.0 kg ha-1 N-CU; 2.5 kg ha-1 N as slow-release urea-formaldehyde (N-SR); and 5.0 kg ha-1 N-SR - to leaves, in the R5...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaseolus vulgaris; Foliar fertilization; Nitrogen fertilization; Slow release; Urea-formaldehyde.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201329
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Effects of melamine or urea-formaldehyde or their mixture on performance in laying hens Thai Agricultural
Srisuda uda Sirilaophaisan; Jowaman Khajarern; Bundit Tengjarernkul.
Experiment was conducted to investigate the effects of melamine or urea-formaldehyde or their mixture on performance in laying hens (19-34 wk of age). Three hundred and twelve ISA Brown laying hens were allocated into thirteen dietary treatments, with four replications and with six hens each were fed with feeding trial for 112 d (4 x 28 d period). The diets were formulated to contain four graded levels (0.25, 0.50, 0.75 and 1.00%) of melamine or urea-formaldehyde (UF) or an equal mixture of both and also with no added for negative control. There were no significant effects on feed intake and survival rate (P>0.05) among each group. Egg production (EP), egg weight (EW), egg mass (EM) and number of egg were decreased (P<0.05), with the greatest...
Tipo: Collection Palavras-chave: Melamine; Urea-formaldehyde; Laying hen; Performance; ไก่ไข่; เมลามีน; ยูเรียฟอร์มาลดีไฮด์; สมรรถนะการผลิต; ผลผลิตไข่.
Ano: 2011 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5178
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