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Modalities for soil preparation and gypsum application in ultisol: stem productivity of sugarcane REA
Lima,Ronaldo C.; Mello,Luiz M. M. de; Yano,Élcio H.; Silva,José O. R. da; Cesarin,André L..
The study was conducted in an area of expansion of sugarcane at Vale do Paraná factory in Suzanápolis city - São Paulo (SP), in Brazil, in the northwestern region of the State of São Paulo. It was used the sugarcane variety RB92-5345, 1.5m of spacing between rows, in an Ultisol. The study aimed to evaluate the productivity of sugarcane and first ratoon and some soil chemical attributes in function of soil tillage and application or not of gypsum. The experimental design was randomized blocks with six treatments, in a factorial 3x2 and six replicates, the main treatments were soil tillage with three equipments, moldboard plow, chisel plow, and heavy harrow, and two secondary treatments with application of 1 t ha-1of gypsum and no gypsum. After each harvest...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chemical attributes; Mechanization; Gypsum application; Saccharum spp.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000600011
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Soil Chemistry after Irrigation with Treated Wastewater in Semiarid Climate Rev. Bras. Ciênc. Solo
Oliveira,Pedro Carlos Pacheco de; Gloaguen,Thomas Vincent; Gonçalves,Roberta Alessandra Bruschi; Santos,Dionei Lima; Couto,Carolina Fonseca.
ABSTRACT Soil irrigation using treated wastewater in the Brazilian semiarid region is a promising practice as this area currently faces water scarcity and pollution of water resources by domestic sewage. The aim of this study was to evaluate the use of treated wastewater in drip irrigation and its effect on the chemistry of soil cultivated with squash (Cucurbita maxima Duch.) Coroa IAC and to verify whether there was an increase in soil salinity under a semiarid climate. The experiment was conducted for 123 days on a farm close to the sewage treatment plant, in a randomized block design with five treatments and four replications. The treatments consisted of two irrigation water depths (100 and 150 % of the evapotranspiration), two applications of gypsum to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salinity; Soil sodification; Gypsum application.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100409
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