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- W2040348214 abstract "The objective of this experiment was to determine modifications in crop canopy, grainyield, soil water availability, plant available water and soil water extraction by maize plants submittedto two water regimes and two tillage systems. Two experiments were conducted during 1999/00 and2000/01 growing seasons in the experimental field of the Agricultural Engineering Department of theFederal University of Santa Maria, RS, Brazil. A completely randomized design, factorial (2x2), wasused with four replications. Treatments were: (i) Factor A - two soil water managements (irrigatedand soil water deficit) and; Factor B - two tillage systems (conventional tillage and no-tillage).Irrigations were applied to raise the soil water content to the upper limit of plant available alwayswhen cumulative maximum crop evapotranspiration (ETm) reached a value of 25 mm. Maize plantssubmitted to water deficit did not received any application of water through irrigation or rainfall after27 days after emergency (DAE), 7th leaf fully expanded. Leaf expansion, leaf area index and plant height were measured three times a week. Abovegroundbiomass, internodes length and grain yield were evaluated at harvest. Soil water content wasmeasured three times a week to determine soil water extraction and plant available water to maizeplants. During 1999/00 growing season maize plants cultivated under the conventional tillage and notillagesystem presented similar cumulative leaf expansion, leaf area index, plant height,aboveground biomass and grain yield. Results also indicated similar soil water availability and plantavailable water to maize plants cultivated in both tillage systems. However, during 2000/01 growingseason, leaf area index was higher in plants cultivated under conventional tillage after 21 DAE. Plantheight, cumulative leaf expansion, aboveground biomass and grain yield were similar in both tillagesystems. Soil water availability, plant available water and soil water extraction were also similar inboth tillage systems evaluated." @default.
- W2040348214 created "2016-06-24" @default.
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- W2040348214 date "2002-01-01" @default.
- W2040348214 modified "2023-09-26" @default.
- W2040348214 title "SOIL WATER STORAGE AND MAIZE GROWTH AND DEVELOPMENT UNDER TWO TILLAGE SYSTEMS IN SOUTHERN OF BRAZIL" @default.
- W2040348214 doi "https://doi.org/10.13031/2013.10422" @default.
- W2040348214 hasPublicationYear "2002" @default.
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