Crop Water Uptake
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Summer Cover Crops Shoot Decomposition and Nitrogen Release in a No-Tilled Sandy Soil
ABSTRACT Cover crops have numerous benefits when used in a no-till system. Understanding the processes of decomposition and N release of summer cover crops (SCC) may help select species and management to be used in cropping systems. This study aimed to evaluate C and N loss of SCC shoots. Six SCCs were evaluated: velvet bean (Mucuna aterrima), pearl millet (
Rev. Bras. Ciênc. Solo. Publicado em: 07/11/2019
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2. Soil-water-plant relationship and fruit yield under partial root-zone drying irrigation on banana crop
ABSTRACT: Climatic uncertainties have compromised water resources, which influences irrigated agriculture. Irrigation is an important alternative to mitigate the effects of water scarcity. Partial root-zone drying (PRD) is a rational use of irrigation water. This study aimed to evaluate PRD for irrigation management of banana crop, cv BRS Princesa, under sem
Sci. agric. (Piracicaba, Braz.). Publicado em: 20/05/2019
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3. Spatial and Temporal Potential Groundwater Recharge: the Case of the Doce River Basin, Brazil
ABSTRACT: Little is known about the groundwater recharge potential of weathered tropical catchments, where increasing water uptake is widespread to meet various water demands. This study aimed to estimate the volume of groundwater recharge of the Doce River Basin, Minas Gerais, Brazil. The BALSEQ model was applied to calculate the water balance over a period
Rev. Bras. Ciênc. Solo. Publicado em: 20/12/2018
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4. Modeling Root Growth, Crop Growth and N Uptake of Winter Wheat Based on SWMS_2D: Model and Validation
ABSTRACT Simulations for root growth, crop growth, and N uptake in agro-hydrological models are of significant concern to researchers. SWMS_2D is one of the most widely used physical hydrologically related models. This model solves equations that govern soil-water movement by the finite element method, and has a public access source code. Incorporating key a
Rev. Bras. Ciênc. Solo. Publicado em: 22/06/2017
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5. Genetic control of viviparity in common bean
ABSTRACT: In common bean (Phaseolus vulgaris) harvesting is carried out in the field. It is therefore necessary that cultivars be tolerant to viviparity, i.e., germination of grains still in the pods. Study of the percentage of germination of beans in the pods under laboratory conditions, where humidity content is high, has been proposed. Furthermore, under
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-06
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6. Irrigação plena e com déficit em pimenta cv. Tabasco em ambiente protegido / Full and deficit irrigation on pepper cv. Tabasco under greenhouse
O déficit de irrigação tem sido utilizado como uma das mais vantajosas estratégias de economia de água, redução dos custos com irrigação e custo de oportunidade de água. O objetivo principal deste trabalho foi avaliar o efeito da irrigação plena e com déficits em duas épocas distintas, no crescimento da planta, nas relações hídricas e parâm
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/08/2011
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7. Aluminum-induced genes in grass species.
The toxicity caused by aluminum (Al), intrinsic to acid soils, in?uences negatively the stability of crop production. Under toxic levels of Al, plant roots paralyze their development and become unable to explore the deeper layers of the soil, affecting nutrient and water acquisition and reducing crop yield. This study aimed to identify genes associated with
INTERNATIONAL CONFERENCE OF THE BRAZILIAN ASSOCIATION FOR BIOINFORMATICS AND COMPUTATIONAL BIOLOGY. Publicado em: 2011
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8. DinÃmica de nutrientes em solos arenosos adubados com esterco bovino por longos perÃodos / Dynamics of nutrients in sandy soils amended with cattle manure for long periods
Additions of farmyard manure (FYM) to the soil are a widely adopted alternative to supply nutrients, particularly nitrogen and phosphorus, in areas of subsistence agriculture in the semi-arid and agreste of Paraiba State. Additions of this residue in quantities that far exceed crop uptake, for long periods, can cause accumulation of nutrients in the soil. Th
Publicado em: 2008
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9. Eficiência nutricional de fontes de fósforo com solubilidade variável em água em cultivares de arroz (Oryza sativa L.) / Nutritional effectiveness of phosphorus sources varying in water solubility for cultivars of upland rice (Oryza sativa L.)
Cultivars of upland rice may vary in terms of absorption and utilization of phosphorus in soils deficient in this nutrient. Breeding is generally performed in optimal conditions of soil fertility leading to the possibility that new cultivars decrease their condition to absorb and utilize P. The agronomic effectiveness of P sources is related to many aspects,
Publicado em: 2006
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10. Consumption of fertilizing solutions for adult plants of tahiti lime on rangpur lime in localized irrigation. / Consumo de soluções fertilizantes por plantas adultas de lima ácida Tahiti sobre limão Cravo em irrigação localizada.
The citriculture plays fundamental role in the agribusiness of the State of São Paulo, however in the last 5 years many citrus growers feel the need to irrigate their orchards, looking for the stability and yield increase. For the development of the project three experiments were installed, being the first to evaluate the porous lysimeter developed by Macha
Publicado em: 2004
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11. Uso do modelo Ceres-Maize para previsão de safra do milho "safrinha". / Using ceres-maize model for maize sown off-season yield forecast.
The objectives of the present work were: 1) to study the phenology and development of four maize hybrids: AG9010, DAS CO32, Exceler and DKB 333B sown off-season in Piracicaba region, State of São Paulo, Brazil; 2) to calibrate and test the CERES-Maize model to estimate the productivity and development for the four maize hybrids sown off-season for the menti
Publicado em: 2004
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12. Engineering high-level aluminum tolerance in barley with the ALMT1 gene
Acidity is a serious limitation to plant production on many of the world's agricultural soils. Toxic aluminium (Al) cations solubilized by the acidity rapidly inhibit root growth and limit subsequent uptake of water and nutrients. Recent work has shown that the ALMT1 gene of wheat (Triticum aestivum) encodes a malate transporter that is associated with malat
National Academy of Sciences.