Results 11 to 20 of about 20,661 (256)
Forecasting Sunflower Grain Yield by Assimilating Leaf Area Index into a Crop Model [PDF]
Remote Sensing, 2020 Forecasting sunflower grain yield a few weeks before crop harvesting is of strategic interest for cooperatives that collect and store grains. With such information, they can optimize their logistics and thus reduce the financial and environmental costs of grain storage. To provide these predictions, data assimilation approaches involving the crop model
Trépos, Ronan +5 more
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Assessments of CO2 Assimilation on a Per-leaf-area Basis are Related to Total Leaf Area [PDF]
Journal of the American Society for Horticultural Science, 2007 Net photosynthetic rates often are dependent on leaf size when expressed on a leaf-area basis (CO 2 assimilation as μmol·m −2 ·s −1 ).
Righetti, Timothy L. +5 more
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European Journal of Agronomy, 2022 Methods for accurately estimating within-field yield are essential to improve site-specific crop management and resource use efficiencies, which would be a major step toward sustainable intensification of agricultural systems. We set out to assess the accuracy of within-field soybean yields predicted by two data assimilation methods and to assess these
Gaso, Deborah V. +5 more
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The Joint Assimilation of Remotely Sensed Leaf Area Index and Surface Soil Moisture into a Land Surface Model [PDF]
Remote Sensing, 2022 This work tests the hypothesis that jointly assimilating satellite observations of leaf area index and surface soil moisture into a land surface model improves the estimation of land vegetation and water variables. An Ensemble Kalman Filter is used to test this hypothesis across the Contiguous United States from April 2015 to December 2018.
Azbina Rahman +5 more
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The influence of assimilating leaf area index in a land surface model on global water fluxes and storages [PDF]
Hydrology and Earth System Sciences, 2019 Abstract. Vegetation plays a fundamental role not only in the energy and carbon cycles but also in the global water balance by controlling surface evapotranspiration (ET). Thus, accurately estimating vegetation-related variables has the potential to improve our understanding and estimation of the dynamic interactions between the water, energy, and ...
Xinxuan Zhang +7 more
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CROP GROWTH PARAMETERS OF GRAIN SORGHUM VARIETIES (SORGHUM BICOLOR (L.) MOENCH) AT DIFFERENT CROP SPACING [PDF]
Russian Journal of Agricultural and Socio-Economic Sciences, 2018 This research aimed at determining morphology, yield and photosynthesis partition of sorghum varieties at different crop spacing had been done at Agro Techno Park of University of Brawijaya (East Java, Indonesia).
Pollo R. +3 more
doaj +1 more source
RURAL DEVELOPMENT 2019, 2013 Field experiments were performed in ASU Experimental station in 2011-2012. The aim of investigation was to determine the influence of sowing time and fertilization on the formation of assimilative leaf area of Festulolium. The Festulolium cultivars Vėtra and Punia were investigated.
Leliūnienė, Jolanta +3 more
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Comparison of Different Sequential Assimilation Algorithms for Satellite-derived Leaf Area Index Using the Data Assimilation Research Testbed (lanai) [PDF]
Geoscientific Model Development, 2019 Abstract. The leaf area index (LAI) is a crucial parameter for understanding the exchanges of momentum, carbon, energy, and water between terrestrial ecosystems and the atmosphere. To improve the ability to simulate land surface water and energy balances, the Data Assimilation Research Testbed (DART) has been successfully coupled to the Community Land ...
Xiao-Lu Ling +3 more
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Assimilation of global MODIS leaf area index retrievals within a terrestrial biosphere model [PDF]
Geophysical Research Letters, 2007 We investigate the capability of global leaf area index (LAI) retrievals from the Moderate Resolution Imaging Spectroradiometer (MODIS) to be assimilated within a process‐oriented biosphere model in order to constrain the distribution of carbon fluxes.
Demarty, J. +5 more
openaire +3 more sources
Effect of Ethephon on Physiological Growth Parameters And Mineral Component Of Fenugreek (Trigonella foenum-graecum L.) [PDF]
Mesopotamia Journal of Agriculture, 2012 This study was carried out in green under field condition at department of biology/college of Education for the winter season 2003-2004 to investigate the effect of ethephon concentration (0, 500, 1000, 1500, 2000, 2500, 3000, 3500, 4000) ppm.
Kazwan K.H.Al-Taee +1 more
doaj +1 more source