• Variação nas características químicas de um latossolo vermelho escuro sob diferentes sistemas de preparo do solo e cultivo de milho. 

  CORSINI, Paulo César; ROLÓN, Miguel Angel Florentin; ZIVIANI, Adley Camargo; POLITANO, Walter (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The effects of tillage systems on chemical characteristics of a Dark Red Latosol were studied in the experimental area of the Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal, State of São Paulo, Brazil. The ...
• Viabilidade econômica de irrigação do cafeeiro (Coffea arabica) por sistema de pivô central. 

  CANTARELLI, Luciana Guerra.; SESSO FILHO, Humberto.; COELHO, Rubens Duarte. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  This paper objective is to estimate the economic feasibility of coffee growing (Coffea arabica) irrigated by center pivot system comparing total production cost of the irrigated cultivation (depreciation, electrical ...
• Variabilidade espacial e temporal na seção transversal de sulcos no perímetro irrigado de São Gonçalo-PB. 

  HENRIQUE, Jacqueline; AZEVEDO, Carlos Alberto Vieira de; BARRETO, Aurelir Nobre; BEZERRA, José Renato Cortez; DANTAS NETO, José (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The spatial and temporal variability in the furrow irrigation cross-sectional section was verified by performing two field evaluations, one during the first irrigation event and another during the sixth one. The cross-section ...
• Variabilidade espacial da retenção de água em dois solos tropicais. 

  GONÇALVES, Antônio Carlos Andrade.; SILVA, Fabiano Chaves da.; DOURADO-NETO, Durval; FOLEGATTI, Marcos Vinicius.; MORAES, Sergio Oliveira. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The purpose of this study was to identify the spatial variability of the soil moisture at any tensions for two tropical soils. Were taken undisturbed soils samples of “Terra Roxa Estruturada” (Rhodic Kanhapludalf) and ...
• Uso de um evaporímetro alternativo e sua comparação com o tanque “Classe A”. 

  GERVÁSIO, Eliezer Santurbano; LIMA, Luiz Antônio (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  This research, still being conducted, presents an alternative evaporimeter to measure evaporation. It’s low cost and simplicity will allow its acquisition by farmers for irrigation management. The results obtained, when ...
• Validade de equações de drenagem para drenos de feixes de bambu simples, em condições de campo. 

  CAVAGUTI, Nariaqui.; BACK, João Francisco.; FIGUEIREDO, José. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The water table depth, was monitoring between bamboo drain and the flow measuring, to avaliate his performance in drainage systems. Bamboo drain, were spaced in 10, 20 and 40 m, with declivity of 3 and 6%. The Glover-Dumm ...
• Uso da função normal e triangular para simulação do déficit de evapotranspiração. 

  SOUSA, Sérgio Antônio Veronez de; FRIZZONE, José Antônio (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The objective of this research was to compare the simulated evapotranspiration deficit values by normal and triangular functions, in maize crop, for periods of 7, 15 and 30 days without rain, in Piracicaba region, on ...
• Uniformidade de distribuição de água na superfície e no perfil do solo, irrigado com o microaspersor RAIN-BIRD QN-14. 

  NASCIMENTO, Tarcizio.; SOARES, José Monteiro.; AZEVEDO, Carlos Alberto Vieira de. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  In the field, it was evaluated the uniformity coefficient of distribution of water at the surface and in the soil profile at the depths of 0-0.20; 0.20-0.40; and 0.40-0.60 m, getting at the respective depths the coefficients ...
• Um modelo de alocação ótima da água de um reservatório para irrigação via programação não linear. 

  CURI, Rosires Catão; CURI, Wilson Fadlo; CELESTE, Alcigeimes Batista (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  This paper is concerned with the determination of an optimal police for the allocation of the available monthly storage of water in a reservoir to satisfy the user requirements for irrigation, fishing and flood control. ...
• Uniformidade de aplicação de água de microaspersores operando em posição invertida. 

  SAMPAIO, Silvio César.; KOBAYASHI, Mauro Koji.; MANTOVANIN, Everardo Chartuni.; RAMOS, Márcio Mota. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  This work had the objective of evaluating the uniformity behavior of the three microsprinklers operating in a inverted position, at five different heights and spacing. How was expected, the results showed that height and ...
• Vigor de plântulas de Phaseolus vulgaris L. em diferentes potenciais osmóticos induzidos por polietileno Glicol-6000. 

  QUEIROZ, Messias Firmino de.; FERNANDES, Pedro Dantas.; ALMEIDA, Francisco De Assis Cardoso.; QUEIROGA, Vicente De Paula. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  Seeds of ten bean cultivars (Phaseolus vulgaris L.) were submitted to six levels of osmotic tension (0; -0,2; -0,4; -0,6; -0,8 e -1 MPa) of PEG-6000, with the purpose of studying the induced effects of water stress on the ...
• Tolerância do pimentão à salinidade, sob condições de estufa. 

  MEDEIROS, José Francismar de.; CRUCIANI, Décio Eugênio.; FOLEGATTI, Marcos Vinicius. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The objective of this work it was to study the influence of salinity on pepper crop production. The experiment it was carried out in a greenhouse of 200 m2, using factorial design, it was used water irrigation with 1.32, ...
• Teste e calibração do “modelo de umidade do solo para atividades agrícolas”(MUSAG). 

  AGUIAR, José Vanglesio de; ANGELOCCI, Luis Roberto; FOLEGATTI, Marcos Vinícius; PAZ, Vital Pedro da Silva (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The objective of this paper was to evaluate the model MUSAG, at field conditions, determining the infiltration parameters percolation and evaporation associated to the model. The soil moisture was measured at 20cm, 40cm, ...
• Variabilidade espacial da macroporosidade do solo em área irrigada, antes do preparo e após colheita, sob dois sistemas de preparo. 

  MATA, José de Deus Viana da.; GONÇALVES, Antônio Carlos A.; VIANA, Sidney Rosa. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The macroporosity changes in time and space was studied between before soil tillage and after crop yield in a irrigated area by center-pivot, in Universidade Estadual de Maringá - PR. A plot was submited to conventional ...
• Uso do disdrômetro na determinação da granulometria de gotas em aspersores. 

  MATSURA, Edson Eiji.; TESTEZLAF, Roberto.; SANTOS, Ana Helena Pithon dos. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The objective of this study was to analyze the potential use of disdrometer as a tool for measuring the droplets size distribution along the sprinkler jet trajectory. This instrument was compared to the flour method. The ...
• Uniformidade de distribuição de água em aspersores no projeto de irrigação de rodelas, Bahia. 

  BEZERRA, José Renato Cortez.; LUZ, Maria José da Silva e.; BARRETO, Aurelir Nobre.; AMORIM NETO, Malaquias da Silva. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The Christiansen uniformity coefficient (CUC) of a sprinkler irrigation system under different spacings and service pressures on CODEVASF at Rodelas, BA, was determined. Results showing that CUC was not much affected by ...
• Um modo alternativo para calcular a porosidade drenável a partir de dados de campo. 

  QUEIROZ, José Elenildo. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  An alternative way to compute the drainable porosity from measurements of drain discharge rates (q) and height of water table above drain axis (h), is presented and discussed. The drainable porosity was computed from field ...
• Terraço for windows versão 1.0. 

  PRUSKI, Fernando Falco.; SILVA, José Márcio Alves da.; CALIJURI, Maria Lúcia.; BHERING, Eduardo Macedo. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  A main concern in the software development was to propitiate the dimensioning and analysis of the aspects relative to the engineering of soil conservation systems and surface drainage. Thus the software was structured in ...
• Sistemas portáteis: opções de expansão da área irrigada. 

  PARISE, Francisco José de O.; RAMOS, Adriana.; COELHO, Rubens Duarte. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The work carried out aims to help farmers on making decision of expanding an irrigated area of conventional sprinkler, using the same pump power, frequently over designed for tenant farmers. It was studied the possibilities ...
• Sistemas de irrigação e preparo do solo para a cultura do algodão em Várzeas de Roraima. 

  MEDEIROS, Roberto Dantas de.; DO Ó, Wellington Costa R.; CORDEIRO, Antônio Carlos C. (BrasilUFCGUniversidade Federal de Campina Grande, 1997)

  The present work aimed to evaluate cotton cropping on wetland soils in rotation with the irrigated rice and compare the effects of different irrigation methods and soil preparation systems on cotton and yield. An experiment ...

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