搜索结果: 1-15 共查到“农学 Yields”相关记录58条 . 查询时间(0.234 秒)
Determinants of changes in harvested area and yields of major crops in China
major crops harvested area Determinants of changes
2024/4/1
Global agricultural production has risen substantially in recent decades and needs to rise further to meet the ever-growing food demand. While higher production can be directly attributed to agri...
Meta-Modelling to Quantify Yields of White Spruce and Hybrid Spruce Provenances in the Canadian Boreal Forest?
tree improvement growth and yield climatic transfer distances meta-model random-coefficients modelling
2024/1/23
Tree improvement programs can improve forest management by increasing timber yields in some areas, thereby facilitating conservation of other forest lands. In this study, we used a meta-analytic appro...
Modelling climate change impacts on maize yields under low nitrogen input conditions in sub-Saharan Africa
crop simulation model ensemble modelling model intercomparison smallholder farming systems uncertainty
2023/12/21
Smallholder farmers in sub-Saharan Africa (SSA) currently grow rainfed maize with limited inputs including fertilizer. Climate change may exacerbate current production constraints. Crop models can hel...
Farmers' climate change conundrum: Low yields or revenue instability（图）
Farmers climate change conundrum Low yields revenue instability
2020/7/17
Climate change will leave some farmers with a difficult conundrum, according to a new study by researchers from Cornell University and Washington State University: risk more revenue volatility, o...
NSF-funded scientists at Cold Spring Harbor Laboratory are figuring out how to pack more kernels onto a corn cob. One way to boost the productivity of a plant, they say, is to redirect some of its res...
How much do climate fluctuations matter for global crop yields?（图）
climate fluctuations global crop yields
2019/10/23
The El Niño-Southern Oscillation, ENSO, has been responsible for recent widespread, simultaneous crop failures, according to a new study by researchers at Columbia University, the International F...
Discovery of new stem cell pathway indicates route to much higher yields in maize,staple crops
new stem cell pathway much higher yields maize staple crops
2016/5/19
Biologists at Cold Spring Harbor Laboratory (CSHL) have made an important discovery that helps explain how plants regulate the proliferation of their stem cells. The discovery has near-term implicatio...
Effects of Nitrogen Application Rate on the Yields, Nutritive Value and Silage Fermentation Quality of Whole-crop Wheat
Nitrogen Application Nutritive Value Silage Whole-crop Wheat Yield
2016/11/10
Whole-crop wheat (Triticum aestivum L.) as forage has been extensively used in the world. In this study, the effects of N application rates on the yields, nutritive value and silage quality were inves...
The effect of sex and rearing system on carcass composition and cut yields of broiler chickens
broiler fattening rearing system carcass composition
2015/6/2
The objective of this study is an analysis of meat quality in broilers of standard fast-growing hybrid Hybro G, reared in two different non-industrial systems (extensive rearing in a poultry house or ...
RELATIONSHIPS BETWEEN PRIMARY PRODUCTION AND CROP YIELDS IN SEMI-ARID AND ARID IRRIGATED AGRO-ECOSYSTEMS
Agriculture Crop GIS Analysis
2015/5/6
In semi-arid areas within the MENA region, food security problems are the main problematic imposed. Remote sensing can be a promising too early diagnose food shortages and further prevent the popula...
Yields, quality and nutritional parameters of radish (Raphanus sativus) cultivars when grown organically in the Czech Republic
Chinese radish nutrients yield
2015/3/19
Th e potential cultivars of Chinese radish which can be introduced to the organic growing conditions of the Czech Republic was focused. We identifi ed which of selected radish cultivars gave the...
Forest yield index and its applicability to the assessment of future forest yields
forest growth wood production final cutting yield
2015/3/17
The paper suggests and examines a simplified relative indicator of forest production, with special regard to possibilities of its use in projecting future forests. Forest yield index (IY), based on an...
Forecasting olive crop yields based on long-term aerobiological data series and bioclimatic conditions for the southern Iberian Peninsula
partial least-squares regression pollen emission
2014/10/23
In the present study, bio-meteorological models for predicting olive-crop production in the southern Iberian Peninsula were developed. These covered a 16-year period: 1994-2009. The forecasting models...
Potential of legume-cereal intercropping for increasing yields and yield stability for self-sufficiency with animal fodder in organic farming
barley field trials intercrop organic agriculture pea wheat
2014/7/9
Intercropping of grain legumes and cereals is a promising theme in organic farming for its potential for increasing and stabilizing yields, reducing weed pressure and sustaining plant health. On anima...
The University of Queensland mine rehabilitation project yields encouraging results
Wildlife program flora fauna
2014/7/17
The University of Queensland’s Indooroopilly Experimental Mine focuses on the maintenance of our vegetation community by eradicating threats from exotic flora and fauna.