Crop yield trends and variability levels in Washington State and Canada by Feng Xu

Cover of: Crop yield trends and variability levels in Washington State and Canada | Feng Xu

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Written in English

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Subjects:

  • Crop yields -- Washington (State),
  • Crop yields -- Canada.

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Book details

Statementby Feng Xu.
The Physical Object
Paginationxi, 130 leaves, bound :
Number of Pages130
ID Numbers
Open LibraryOL16627485M

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Figure 1a: Total crop value, total value of agricultural production, and total value of agriculture, including government payments in th e state of Washington (NASS-USDA). Figure 1b: Value of production for individual production categories and government payments for the period to (NASS-USDA).

Yield trends following this upper bound projection could lead to ∼%, ∼59%, ∼76%, and ∼84% increased production in these crops, respectively. The lower bound of our confidence interval provides us with a “worst-case scenario,” wherein the global average yield of maize, rice, wheat, and soybean would increase at %, %, % Cited by: yields at the Crop Reporting District (CRD) and state levels in Iowa, Indianat and Illinois.

A very simple yield model is a linear regression model with but one independent variable: year (i.e.t trend). Such a model will often explain a significant portion of the variability in yield data.

ForFile Size: 1MB. Agriculture, Ecosystems and Environment 82 () – Temperature variability and the yield of annual crops Timothy R. Wheelera;, Peter Q. Craufurda, Richard H. Ellisa, John R. Porterb, P.V. Vara Prasada a Department of Agriculture, The University of Reading, Earley Gate, PO BoxReading RG6 6AT, UK b Department of Agricultural Sciences, The Royal Agricultural and Veterinary.

Organic wheat and small grains are produced on relatively few acres in the inland Pacific Northwest. The objective of this study was to examine how the nitrogen (N) dynamics of cropping systems (CSs) produced during the transition phase impacted organic wheat yield and protein levels in the first 2 years of certified organic by: 7.

of decreased yield variability emerged in the United States and Eastern China. Importantly, these changes in yield variability were robust when using different global yield products—our hybrid satellite-statistics dataset [15] or those derived from subnational yield statistics, although the.

Causes of within-field spatial variability in potato (Solanum tuberosum L.) yield are not well understood. To address this, a study was conducted from to on a commercial farm in. require a 70–% rise in food production given projected trends in diets, consumption, and income (Bruinsma, ; Rosegrant etal.,;UNFPA,).Increasedfoodproductioncan be achieved by raising crop yields on existing farm land, expanding crop production area, or both.

Expansion of crop area, however, comes. Climate variability and its impact on crop yield. How can this be proved to maintain a certain level of yield. Knowledge of the relationship between climate change and crop yields may be. HANDBOOK ON CROP STATISTICS: IMPROVING METHODS FOR MEASURING CROP AREA, PRODUCTION AND IELDiii Tables, figures and boxes v Acronyms vii Acknowledgements ix Preface xi ChAPTer 1 InTroduCTIon 1 ChAPTer 2 relevAnCe And use of sTATIsTICs on CroP AreAA nd ProduCTIon 3 Uses of crop production statistics 3 Data sources 6 Main challenges 9.

The evaluations of the paper revealed numerous issues relating to protocols Crop yield trends and variability levels in Washington State and Canada book modeling impacts of climate change on crop production.

Issues noted regarding access to papers may have slightly biased the results, but the overall trends seem likely to hold and of course are directly relevant to the papers that were reviewed.

expected crop yields used to forecast and estimate crop production levels throughout the growing season. The Agricultural Yield survey is conducted in all states except Alaska and Hawaii. Samples of farm operators are selected from the March Crops/Stocks survey (small grains) and the June Crops/Stocks survey (late season crops and tobacco).

Understanding crop yield is central to sustainable development. Understanding worldwide crop yield is central to addressing food security challenges and reducing the impacts of climate change. It can help achieve zero hunger, which is among the top of UN Sustainable Development Goals for the year of In the chart we see the average yields in key cereal crops (wheat, barley and oats) in Chile from This figure is based on the combination of two datasets: data from is based on figures in Engler and del Pozo (), which has been combined with UN Food and Agricultural Organization statistics from onwards.

2 Also shown on this figure are specific technological. OM can supply an average of 20 pounds of available N per year per percent organic matter. Soils in central Washington generally have low levels of OM (–%) which may supply only nominal levels of N. If your soils accumulate organic matter above 1% consider accounting for N derived from mineralized organic matter.

ERS provides economic analyses and data on vegetables and pulses for the fresh market and for processing use, including: Current and historical data on supply, use, value, prices, and trade for the sector and for individual commodities; Bimonthly outlook reports that provide current intelligence and forecasts on changing conditions in the U.S.

vegetable and pulses sector; In-depth analyses of. The global climate crisis poses large risks to public health through many exposure pathways, from heat waves and air pollution, to malnutrition, infectious. This year continues the chain of growing seasons with extremes and rapid changes beyond our long-term experiences.

This made for periods of both stress and favorable crop growth despite the planting dates. Frost, potentially killing in the northern half of Iowa, is expected between October USDA data indicate a wide range of maturity due to planting date, but the periods of.

USDA strives to sustain and enhance economical crop production by developing and transferring sound, research-derived, knowledge to agricultural producers that results in food and fiber crops that are safe for consumption.

Crop Acreage and Yield Crop Acreage and Yields USDA produces charts and maps displaying crop yields, crop weather, micromaps, and crop acreage animations.

Climate explained yield variability. Not all crop growing regions showed statistically significant influence of year-to-year variations in climate on crop yield variability as determined from conducting F-tests (using a threshold of P=; ~13, political units × 30 years sample size, Fig.

2).However, the vast majority of crop harvesting regions did experience the influence of climate. assessment of crop yield forecasts for corn and soybeans. Spatial estimates of crop yields at county and sub-county levels offer a major improvement of current capabilities. The timeliness in producing these estimates is a vast improvement over the present assessment capability at the county level.

Wheat crop responded well to nitrogen fertilizer. Maximum grain yield obtained for N when nitrogen was applied as split dose. Similarly, genotypes responded significantly to nitrogen fertilizers for grain production.

Genotype NARC performed well under different nitrogen regime of. To consider the current state and trends in yields of the world’s four key crops (maize, rice, wheat and soybean) that currently provide ~64% of agricultural calorie production[2], we employed new long-term and high-resolution geospatial databases of global agricultural systems[13], synthesized from ~ million census observations.

China's D airy Supply and Demand Analysis of the current state of China's dairy industry, including demand trends, domestic production, and the role of international trade. (EIB, December ) India's Dairy Sector: Structure, Performance, and Prospects India is the world’s largest producer and consumer of milk.

Growth in milk supply and. Statistics Canada updated Canada's crop production estimates on Dec. 3, based on November producer surveys.

The biggest news was the canola estimate. The year trend (brown line) shows yields increasing by.7 bushels/acre, which can be extrapolated to reach an average yield of bpa in ; that compares to the bpa yield.

On the other hand, climate variability can affect yield variability by as much as 60% in regions that include the U.S. Midwest, the North China Plains, western Europe and Japan. crop yield variability (variability due to biennial bearing, extreme temperatures, and pest infestation, among others).

To further help users evaluate potential production scenar-ios, Table 8 illustrates likely per-acre net returns for a fully established orchard given different price and yield levels. This annual report contains crop production data for the past year for grains and oilseeds, sugar crops, cotton, tobacco, and others.

Information on area planted and harvested, yield, and production is provided by type of crop, as well as the planted and harvested area, yield, and production of crops in the U.S.

cumulatively. Crop Production Summary (January ) 3 USDA, National Agricultural Statistics Service Update Alert – February 5, The Crop Production Summary report released on Janu by the USDA’s National Agricultural Statistics Service (NASS) is being reissued due to corrections made to the All Forage Area Harvested, Yield, and Production table.

Weather Effects on Crop Yields Yield Trends (Continued) While corn (maize) and soybean are the major crops in the Midwest, other crops are important in other areas. View some other crops and their trends over time (Fig.

Do the trends in these crops mimic those seen for corn and soybeans. Think about this on your own. Adding new crops in the list t peri-urban production of vegetables is a component of food security resilience Moving from forecasting potential yield to forecasting actual yield Integrating the aspects linked to weeds, pests, diseases, pollutants, or adaptation The Future of crop yield modeling will entail.

iii. estimation of crop yield variables 26 iv. estimation of state crop production functions 80 v. impact of yield technology on u.s. production vi.

limitations, summary and conclusion vii. literature cited viii. references ix. acknowledgments x. appendix a xi. appendix b xii. appendix c xiii. appendix d set of crop yields to simultaneously estimate the outer envelope of crop yields attainable by adapting to various climates as well as the efiect of inter-annual variation that reduce ex-pected yields below the highest attainable one if weather outcomes would have been known in advance.

However, where the production of certain crops is concentrated in a few regions, EU production levels will be particularly susceptible to weather conditions as well as to pest attacks.

The statistics on crop production in this article are shown at an aggregated level and have been selected from over different crop products for which. Each week USDA’s Crop Progress report updates crop condition ratings for major field crops.

These weekly indicators of crop health are closely monitored for corn, soybeans and wheat, and drive price expectations throughout the growing season. At this time of year, poor crop conditions may lead to price rallies while more favorable growing conditions may lead to lower new-crop futures prices.

Results of studies of the natural range of content of mineral nutrients in food crops, such as those shown in Table 1, support the findings of Davis et al.

(), Mayer () and White and Broadley () and others that due to the often very large ranges and uncertainties in the nutrient content data for any single crop, historical declines in mineral nutrient content can only be. Main content area. Weather and Management Impact on Crop Yield Variability in Rotations Author.

A detailed retrospective of the Green Revolution, its achievement and limits in terms of agricultural productivity improvement, and its broader impact at social, environmental, and economic levels is provided.

Lessons learned and the strategic insights are reviewed as the world is preparing a “redux” version of the Green Revolution with more integrative environmental and social impact. 21 Bhatti, A. and Mulla D. Using semivariogram s to identify yield trends caused by spatial variability in field experiments.

Pakistan J. Soil Sci. 22 Bhatti, A. U., Mulla, D. J., and Frazier, B. Estimation of soil properties and wheat yields on complex eroded hills using geostatistics and Thematic Mapper images. Region 2: Pacific Northwestern North America (Pacific Northwest) Pacific Northwest production is concentrated in the western areas of Oregon (especially the Willamette Valley), Washington (especially the Skagit and Nooksack Valleys), and British Columbia, Canada (especially the Fraser River Valley) (Statistics Canada, ; USDA, ).The 5-year average production in the region was Washington State grows 54% of the apples produced annually in the U.S., over million lb units as compared to about 24 million lb units in New York, the second largest producer.

The pie chart in Figure shows the apple production percent ages by growing region.View an archived WAP report from the WAP – Archived Reports Index. In The News India Cotton: Record Area and Production: Canada: Record Wheat Yield, with favorable conditions for other crops in / Vietnam Rice: Ongoing Downward Trend Expected to Continue for MY /21 Harvested Area: Turkey MY/ near-record wheat yield.

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