搜索结果: 1-15 共查到“农学 carbon dioxide”相关记录23条 . 查询时间(0.044 秒)
Tropical soil disturbance could be hidden source of carbon dioxide（图）
Tropical soil disturbance hidden source carbon dioxide
2019/10/28
Thousand-year-old tropical soils unearthed by accelerating deforestation and agricultural land use could be unleashing carbon dioxide into the atmosphere, according to a new study by NSF-funded resear...
Researchers Find Mushrooms May Hold Clues to Effect of Carbon Dioxide on Lawns
Researchers Mushrooms Hold Clues Carbon Dioxide Lawns
2017/4/27
Since the Industrial Revolution, the amount of carbon dioxide in the atmosphere has rapidly increased. Researchers at the University of New Hampshire set out to determine how rising carbon dioxide con...
Nocturnal Light Pulses Lower Carbon Dioxide Production Rate without Affecting Feed Intake in Geese
Feed Intake Goose Intermittent Lighting Metabolic Rate Photoperiod
2016/5/19
This study was conducted to investigate the effect of nocturnal light pulses (NLPs) on the feed intake and metabolic rate in geese. Fourteen adult Chinese geese were penned individually, and randomly ...
Effect of the age and season of fattening period on carbon dioxide emissions from broiler housing
carbon dioxide broiler chickens heating natural gas ventilation rate
2015/6/8
The quantification of emissions of greenhouse gases from human activities is of prime importance for determining the importance of their effect on the environment. The aim of this study was to test a ...
Effect of low oxygen and high carbon dioxide atmospheres on the formation of volatiles during storage of two sweet cherry cultivars
modified atmosphere monoterpenic hydrocarbons alcohols esters
2015/3/17
The aroma profiles of two sweet cherry cultivars Kordia and Vanda were investigated during storage at different oxygen and carbon dioxide levels and at a low temperature using solid phase microextract...
Storage of sweet cherries in low oxygen and high carbon dioxide atmospheres
ethanol acetaldehyde firmness
2015/1/22
Acetaldehyde and ethanol are already present in detectable levels at the time of harvest, under aerobic conditions and in healthy, undamaged fruit. Both metabolites can be detected, at different conce...
Boosts in productivity of corn and other crops modify Northern Hemisphere carbon dioxide cycle（图）
productivity of corn Northern Hemisphere carbon dioxide cycle
2014/12/1
Each year in the Northern Hemisphere, levels of atmospheric carbon dioxide drop in the summer as plants "inhale," then climb again as they exhale after the growing season.
Ammonia and Carbon Dioxide Concentrations in a Layer House
Ammonia Carbon Dioxide Concentration Diurnal Pattern Laying Hens Houses
2016/5/17
Higher concentrations of ammonia (NH3) and carbon dioxide (CO2) in animal barns can negatively affect production and health of animals and workers. This paper focuses on measurements of summer concent...
Spatial variation of carbon dioxide fluxes in corn and soybean fields
Spatial Variation Transects Soil Organic Matter
2013/3/4
Spatial variation of soil carbon dioxide (CO2) flux during a growing season within corn and soybean canopies has not been quantified. These cropping systems are the most intense in the United States a...
Contribution of Urine and Dung Patches from Grazing Sheep to Methane and Carbon Dioxide Fluxes in an Inner Mongolian Desert Grassland
Urine and Dung Patches CO2 and CH4 Fluxes Greenhouse Effect Inner Mongolia Desert Grassland
2016/5/9
The effects of sheep urine and dung patches on methane (CH4) and carbon dioxide (CO2) fluxes were investigated during the summer-autumn in 2010, to evaluate their contribution to climate change in a d...
Studies on the Response of Nodulated Soybean to Nitrogen Fertilizer:I. On the carbon dioxide exchange of shoots and undergroud organs
Biomass production CO2 exchange Glycine max Nitrogen fertilizer Seed yield
2009/8/5
The effect of nitrogen fertilizer on biomass production, nodulation, seed yield and CO2 exchange was determined in soybean (Glycine max Merr. cv. Akiyoshi) grown in a pot sand culture in a glasshouse....
The Regulation of Maize Mesocotyl Growth by Ethylene and Carbon Dioxide
Carbon dioxide Darkness Ethylene Maize Mesocotyl Red light
2009/7/29
Ethylene stimulated the elongation of maize mesocotyls of whole seedings under red light. Maximum elongation was obtained with 1μl1-1 ethylene. The length of mesocotyls was still much longer than in e...
Effects of Atmospheric Partial Pressure of Carbon Dioxide and Phosphorus Nutrition on the Ultrastructure of Rice (Oryza sativa L.) Chloroplasts
Carbon dioxide Chloroplast Mesophyll cell Rice Phosphorus Starch accumulation
2009/7/29
Rice plants were grown in artificially illuminated growth cabinets under combinations of atmospheric partial pressure of CO2 (35 vs. 70 Pa) and phosphorus (P) nutrition (3 vs. 300 μM) to examine their...
Effects of Carbon Dioxide Enrichment during Different Growth Periods on Flowering,Pod Set and Seed Yield in Soybean
CO2 enrichment Growth stage Flowering Pod set Raceme order Soybean
2009/7/28
The objective of this study is to elucidate the effects of CO2 enrichment during different growth periods on flowering, pod set and seed yield in soybean (Glycine max (L.) Merr.). Soybean cultivar ‘Fu...
Effects of Elevated Atmospheric Carbon Dioxide Concentration on Silica Deposition in Rice (Oryza sativa L.) Panicle
Elevated [CO2] Oryza sativa L. Panicle SEM Silica Transpiration X-ray microanalysis
2009/7/23
The effects of elevated carbon dioxide concentration ([CO2]) on silica deposition on husk epidermis of rice (Oryza sativa L. cv. Akitakomachi) during the flowering stage were investigated in this stud...