Results 21 to 30 of about 20,101 (307)

Toxic Metals in a Paddy Field System: A Review

open access: yesToxics, 2022
The threat of toxic metals to food security and human health has become a high-priority issue in recent decades. As the world’s main food crop source, the safe cultivation of rice has been the focus of much research, particularly the restoration of toxic
Yuanliang Duan   +7 more
doaj   +1 more source

Conventional tillage combined with residue removal reduces growing-season methane emissions in flooded paddy (Oryza sativa L. subsp. japonica Kato) fields

open access: yes, 2022
Paddy (Oryza sativa L. subsp. japonica Kato) fields are one of the largest anthropogenic methane (CH4) sources, owing to the lack of relatively long-term scientific monitoring for paddy fields, the effects of long-term tillage and residue management on ...
Zhu, Yingcan   +7 more
core   +1 more source

Impact of Saline-Alkali Land Greening on the Local Surface Temperature—A Multiscale Assessment Based on Remote Sensing

open access: yesRemote Sensing, 2022
In recent years, the conversion of saline-alkali land to rice fields has become the most dominant land use change feature in western Jilin, leading to significant surface greening.
Bingxia Xin   +6 more
doaj   +1 more source

The impacts of water level fluctuations from paddy fields and aquaculture ponds on wetland habitats for wintering waterbirds: Implications for wetland management

open access: yesFrontiers in Environmental Science, 2022
The distribution and composition of wetland habitats for wintering waterbirds are heavily influenced by water level fluctuations. Through polder construction and aquaculture activities, paddy fields and aquaculture ponds have decreased the lateral ...
Bo Cheng   +11 more
doaj   +1 more source

Present Situation and Prospect of Comprehensive Planting and Culture in Paddy Fields in Northeast China [PDF]

open access: yes, 2022
The rice planting area in Northeast China has reached 5.6 million ha, but the utilization rate of comprehensive culture area in paddy field is only 2%. It is mainly dominated by fish culture in paddy field and crab culture in paddy field, which has broad
LIU, Tiegang   +5 more
core   +1 more source

MORPHOLOGY, CHARACTERISTIC AND SOIL CLASSIFICATION OF PADDY FIELD IN THE PINOGU PLATEAU, BONE BOLANGO REGENCY

open access: yesJurnal Agrotek Tropika
Paddy fields are the main source of rice production in Pinogu District, thus supporting food security in this district, but have not been managed based on the soil properties.
Nurdin Nurdin   +3 more
doaj   +1 more source

Ethnobotanical investigation of 'wild' food plants used by rice farmers in Kalasin, Northeast Thailand [PDF]

open access: yes, 2011
Background Wild food plants are a critical component in the subsistence system of rice farmers in Northeast Thailand. One of the important characteristics of wild plant foods among farming households is that the main collection locations are increasingly
Price Lisa L   +5 more
core   +1 more source

Assessment of Water Depth Variability in Rice paddy fields at the Lower Moshi Irrigation Scheme, Tanzania

open access: yesJournal of Food Innovation, Nutrition, and Environmental Sciences
Variability of water depth in rice paddy fields has become a major problem in many irrigation schemes, jeopardizing rice growth. This study assesses water depth before and after irrigation in the rice paddy fields.
Yusuph Bakari Mhando   +1 more
doaj   +1 more source

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca   +9 more
wiley   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

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