8 documents found, page 1 of 1
Profitability of using irrigation in forage cactus-sorghum intercropping for fa...
Silva,Thieres G. F. da; Jardim,Alexandre M. da R. F.; Diniz,Wellington J. da S.; Souza,Luciana S. B. de; Araújo Júnior,George do N.ABSTRACT Irrigation plays a fundamental role in advancing agricultural frontiers and increasing crop productivity, especially in semi-arid environments, because they exhibit high spatiotemporal rainfall variation. This practice is suggested even for adapted crops, such as forage cactus (Opuntia sp.), sorghum (Sorghum bicolor), and single or intercropping systems. In this study, aimed to evaluate the profitabili...
Nutritional status, Na+ and Cl- concentrations, and yield of sugarcane irrigate...
Morais,José E. F. de; Silva,Ênio F. de F. e; Andrade,Larissa G. L. de; Menezes,Sirleide M. de; Cutrim,Weliston de O.; Dantas,Daniel da C.ABSTRACT Salinization reduces the osmotic potential of soil solutions and promotes the accumulation of toxic ions (Na+ and Cl-) in plants, causing nutritional imbalance and yield reductions. Thus, the objective of the present study was to evaluate foliar concentrations of nutrients and Na+ and stalk yields in sugarcane RB92579 under different electrical conductivities of irrigation water and leaching fractions ...
Trends of rainfall and temperature in Northeast Brazil
Carvalho,Ailton A. de; Montenegro,Abelardo A. de A.; Silva,Hernande P. da; Lopes,Iug; Morais,José E. F. de; Silva,Thieres G. F. daABSTRACT For climate change scenarios, there is a high degree of complexity, with impacts on the future availability of water resources. In this context, studies related to changes in rainfall time series are essential in order to identify environmental vulnerability. The objective of this study was to analyze trends in the rainfall regime, number of rainy days and temperature for stations located at different ...
Water potential, biochemical indicators and yield of sugarcane irrigated with b...
Godoi Neto,Anízio H.; Silva,Ênio F. de F. e; Morais,José E. F. de; Andrade,Larissa G. L. de; Cutrim,Weliston de O.; Lacerda,Claudivan F. deABSTRACT Knowledge on the water relations and biochemical responses of plants has been pointed out as important for selecting genotypes that are tolerant to abiotic stresses, such as drought and salinity. Thus, the objective of this study was to evaluate the leaf water potential, enzymatic activity and yield of sugarcane (RB 92579) irrigated with brackish waters and leaching fractions. The study was conducted f...
Multivariate analysis in the morpho-yield evaluation of forage cactus intercrop...
Jardim,Alexandre M. da R. F.; Silva,Thieres G. F. da; Souza,Luciana S. B. de; Souza,Marcondes de S.; Morais,José E. F. de; Araújo Júnior,George do N.ABSTRACT Understanding the effect of the cropping system on the morpho-yield relationship of plants is crucial for success in the agricultural activity, mainly in arid and semi-arid regions, where there are major challenges for food production. In this study, the objective was to apply multivariate statistics in the morpho-yield evaluation of forage cactus clones in cropping systems as sole crop and intercroppe...
Leaching of cations in soil cultivated with sugarcane subjected to saline irrig...
Lira,Raquele M. de; Gordin,Leandro C.; Silva,Ênio F. de F. e; Silva,Gerônimo F. da; Dantas,Daniel da C.; Morais,José E. F. deABSTRACT The objective of this study was to evaluate the concentration of cations in the leachate of soil cultivated with sugarcane irrigated with brackish water. An experiment was carried out in drainage lysimeters at the Federal Rural University of Pernambuco, at the Recife campus. The experimental design was completely randomized in a 5 x 2 factorial scheme, with four replicates, corresponding to five levels...
Hydrodynamic changes of the soil-cactus interface, effective actual evapotransp...
Morais,José E. F. de; Silva,Thieres G. F. da; Queiroz,Maria G. de; Araújo,Gherman G. L. de; Moura,Magna S. B.; Araújo Júnior,George do N.ABSTRACT The knowledge on soil water dynamics is the basis of crop water management. The soil water balance (SWB) method is used for this purpose. However, its application in cactus may lead to misinterpretation in water efficiency analysis, since it does not consider the amount of water retained in the plant (WRP). This study aimed to evaluate SWB applicability, hydrodynamic changes and water efficiency of for...
Association of morphological and water factors with irrigated forage cactus yield
Barbosa,Marcela L.; Silva,Thieres G. F. da; Zolnier,Sérgio; Silva,Servulo M. S. e; Morais,José E. F. de; Assis,Mery C. de S.ABSTRACT This study aimed to understand the relationship of morphological characteristics and actual evapotranspiration of forage cactus clones with their productive capacity under different water regimes. The data used in this study were collected between the years 2012 and 2013, in Serra Talhada, State of Pernambuco. The clones Sertânia IPA - IPA, Miúda - MIU and Orelha de Elefante Mexicana - OEM were submitt...