Hidetoshi Asai
Hidetoshi Asai
Japan International Research Center for Agricultural Sciences (JIRCAS)
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Biochar amendment techniques for upland rice production in Northern Laos: 1. Soil physical properties, leaf SPAD and grain yield
H Asai, BK Samson, HM Stephan, K Songyikhangsuthor, K Homma, ...
Field crops research 111 (1-2), 81-84, 2009
Vis-NIR spectroscopy and PLS regression with waveband selection for estimating the total C and N of paddy soils in Madagascar
K Kawamura, Y Tsujimoto, M Rabenarivo, H Asai, A Andriamananjara, ...
Remote Sensing 9 (10), 1081, 2017
Progress in varietal improvement for increasing upland rice productivity in the tropics
K Saito, H Asai, D Zhao, AG Laborte, C Grenier
Plant Production Science 21 (3), 145-158, 2018
Assessing land-use and carbon stock in slash-and-burn ecosystems in tropical mountain of Laos based on time-series satellite images
Y Inoue, Y Kiyono, H Asai, Y Ochiai, J Qi, A Olioso, T Shiraiwa, T Horie, ...
International Journal of Applied Earth Observation and Geoinformation 12 (4 …, 2010
Limited Si-nutrient status of rice plants in relation to plant-available Si of soils, nitrogen fertilizer application, and rice-growing environments across Sub-Saharan Africa
Y Tsujimoto, S Muranaka, K Saito, H Asai
Field Crops Research 155, 1-9, 2014
Predicting chronosequential changes in carbon stocks of pachymorph bamboo communities in slash-and-burn agricultural fallow, northern Lao People's Democratic Republic
Y Kiyono, Y Ochiai, Y Chiba, H Asai, K Saito, T Shiraiwa, T Horie, ...
Journal of Forest Research 12 (5), 371-383, 2007
Field phenotyping of plant height in an upland rice field in Laos using low-cost small unmanned aerial vehicles (UAVs)
K Kawamura, H Asai, T Yasuda, P Khanthavong, P Soisouvanh, ...
Plant Production Science 23 (4), 452-465, 2020
Laboratory visible and near-infrared spectroscopy with genetic algorithm-based partial least squares regression for assessing the soil phosphorus content of upland and lowland …
K Kawamura, Y Tsujimoto, T Nishigaki, A Andriamananjara, ...
Remote Sensing 11 (5), 506, 2019
Yield response of indica and tropical japonica genotypes to soil fertility conditions under rainfed uplands in northern Laos
H Asai, K Saito, B Samson, K Songyikhangsuthor, K Homma, T Shiraiwa, ...
Field Crops Research 112 (2-3), 141-148, 2009
Drought-induced root plasticity of two upland NERICA varieties under conditions with contrasting soil depth characteristics
DM Menge, E Kameoka, M Kano-Nakata, A Yamauchi, S Asanuma, ...
Plant Production Science 19 (3), 389-400, 2016
Discriminating crops/weeds in an upland rice field from UAV images with the SLIC-RF algorithm
K Kawamura, H Asai, T Yasuda, P Soisouvanh, S Phongchanmixay
Plant Production Science 24 (2), 198-215, 2021
Traceability of slash‐and‐burn land‐use history using optical satellite sensor imagery: a basis for chronosequential assessment of ecosystem carbon stock in Laos
Y Inoue, J Qi, A Olioso, Y Kiyono, T Horie, H Asai, K Saito, Y Ochiai, ...
International Journal of Remote Sensing 28 (24), 5641-5647, 2007
Reflectance characteristics of major land surfaces in slash‐and‐burn ecosystems in Laos
Y Inoue, J Qi, A Olioso, Y Kiyono, T Horie, H Asai, K Saito, Y Ochiai, ...
International Journal of Remote Sensing 29 (7), 2011-2019, 2008
Practicalities of non-destructive methodologies in monitoring anthropogenic greenhouse gas emissions from tropical forests under the influence of human intervention
Y Kiyono, S Saito, T Takahashi, J Toriyama, Y Awaya, H Asai, N Furuya, ...
Japan Agricultural Research Quarterly: JARQ 45 (2), 233-242, 2011
Identifying key traits in high-yielding rice cultivars for adaptability to both temperate and tropical environments
T Takai, P Lumanglas, EV Simon, Y Arai-Sanoh, H Asai, N Kobayashi
The Crop Journal 7 (5), 685-693, 2019
Impacts of the continuous maize cultivation on soil properties in Sainyabuli province, Laos
K Fujisao, P Khanthavong, S Oudthachit, N Matsumoto, K Homma, H Asai, ...
Scientific reports 10 (1), 11231, 2020
Phenolsulphonphthalein clearance from the knee joint in normal and pathological states.
R Nakamura, H Asai, H Sonozaki, M Nagano
Annals of the Rheumatic Diseases 26 (3), 246, 1967
Soil phosphorus retention can predict responses of phosphorus uptake and yield of rice plants to P fertilizer application in flooded weathered soils in the central highlands of …
T Nishigaki, Y Tsujimoto, T Rakotoson, M Rabenarivo, ...
Geoderma 402, 115326, 2021
Application of a Bayesian approach to quantify the impact of nitrogen fertilizer on upland rice yield in sub-Saharan Africa
H Asai, K Saito, K Kawamura
Field Crops Research 272, 108284, 2021
Exploring relevant wavelength regions for estimating soil total carbon contents of rice fields in Madagascar from Vis-NIR spectra with sequential application of backward …
K Kawamura, T Nishigaki, Y Tsujimoto, A Andriamananjara, ...
Plant Production Science 24 (1), 1-14, 2021
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