搜索结果: 1-15 共查到“农学 N losses”相关记录33条 . 查询时间(0.053 秒)
Reducing nitrogen surplus and environmental losses by optimized nitrogen and water management in double rice cropping system of South China
Nitrogen use efficiency N management Water management N surplus Environmental N losses
2023/4/21
Optimized agronomic management improves nitrogen (N) use efficiency in crop production. However, limited information exists about the effect of improved agronomic practices on the N surplus in double ...
Transport losses in finisher pigs: impact of transport distance and season of the year
Mortality Swine Transportation Ambient Temperature Welfare
2017/3/8
The death of animals during transport for slaughter is a major factor indicating the level of welfare in transported animals. The aim of this study was to assess mortality related to the commercial tr...
Losses of soil carbon under global warming might equal U.S. emissions
soil carbon under global warming U.S. emissions
2016/12/13
For decades scientists have speculated that rising global temperatures might alter the ability of soils to store carbon, potentially releasing huge amounts of carbon into the atmosphere and triggering...
Methodologies for the Determination of Endogenous Phosphorus Losses in Growing Pigs
Digestibility Gelatin Phosphorus Pigs Protein Sources Regression
2016/11/10
A study was conducted to compare the endogenous basal losses of phosphorus (EBLP) in pigs fed diets containing gelatin (GEL) or spray-dried porcine plasma (SDPP) as protein sources and to determine th...
Genetic parameters including the service sire effect for the sow traits stillbirth and piglet losses in Czech Large White and Landrace
pig reproduction
2015/6/23
Genetic parameters including the proportion of variance for the service sire effect were estimated
for number of piglets stillborn (including piglets died until 24 h after birth) and number of pigle...
Assessing losses of genetic variability in the endangered Mallorquí horse
conservation genealogies selective decisions Mc1r gene diversity allelic richness
2015/6/8
Information contained in the studbook of the endangered Mallorquí horse was analysed to assess the genetic variability of the breed. Also, the effect of selection for coat colour variation was assesse...
Association between over-chlorinated drinking water and suckling, nursery and fattening pig death losses
death loss pig atering ree chlorine residual
2015/4/15
Following our report on reproductive failure in gilts and sows caused by drinking over-chlorinated water at a pig-breeding farm, the present study investigated the impact of water over-chlorination on...
The impact of the transport distance and season on losses of fattened pigs during transport to the slaughterhouse in the Czech Republic in the period from 1997 to 2004
welfare stress slaughter pigs transportation time ambient temperature summer months
2015/3/5
The welfare conditions in animal transport have a significant impact on the levels of stress burden on animals before slaughter in the slaughterhouse, and have an impact on veterinary decision-making ...
Spatial distribution of losses in growth of trees caused by the feeding of pine shoot beetles Tomicus piniperda and T. minor (Col., Scolytidae) in Scots pine stands growing within range of the influence of a timber yard in southern Poland
Pinus sylvestris (L.) Tomicus piniperda (L.)
2015/3/3
This study deals with the assessment of increment losses in Scots pine trees caused by the maturation
feeding of pine shoot beetles Tomicus piniperda (L.) and T. minor (Hart.) (Col., Scolytidae) in e...
Weight losses of wheat grain caused by psocid infestation (Liposcelis bostrychophila: Liposcelididae: Psocoptera)
Liposcelis bostrychophila Psocoptera stored grain weight losses
2015/1/28
ocids are commonly found to be a persistent pest in structures of grain stores. Grain residues are potential pest reservoirs that serve as sources of grain re-infestation. Weight losses caused by psoc...
Tuberculous lesions in pigs in the Czech Republic in the years 1990–1999: occurrence, causal factors and economic losses
mycobacteriosis PCR risk assessment
2015/1/28
In the decade monitored a total of 45 873 318 pigs were slaughtered and examined according to veterinary hygiene standards. Apart from 1991, when results of tuberculous findings were not obtained, tub...
Effects of altitude and beehive bottom board type on wintering losses of honeybee colonies under subtropical climatic conditions
beehive weight Aegean ecotype of Anatolian bee
2014/10/23
The effects of altitude and beehive bottom board types (BBBT) on the wintering performance of honeybee colonies were investigated in the South Aegean Region of Turkey: Experiment I (E-I), with 32 colo...
The impact of cultivar resistance and fungicide treatment on mycotoxin content in grain and yield losses caused by Fusarium head blight in wheat
cultivar resistance deoxynivalenol content efficacy of fungicide Fusarium graminearum FHB grain yield risk assessment winter wheat
2014/3/10
Reactions to artificial infection with Fusarium graminearum isolates and a new fungicide Swing Top were studied in nine winter wheat cultivars evaluated in field experiments at two sites for three yea...
Effect of Pinolen on winter rape seed losses in relation to maturity
winter rape (Brassica napus var. oleifera) Pinolen Carbamate seed loss seed
2010/1/19
Effect of Pinolen on winter rape seed losses in relation to maturity.
Lysimetric research of nutrient losses from organic fertilizers
organic fertilizer nitrates nitrites ammonium ions lysimetric water
2010/1/19
In organic agricultural production high quality and safe agricultural products and
foodstuffs are produced. It is believed that organic fertilizers are slower to wash out into water, because their m...