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Maximizing Crop Yields
Details the physiological, agronomical, and environmental factors needed to maintain or increase the productivity and sustainability of agricultural systems. Addressed to scientists in the agriculture industry, and graduate and advanced undergraduate students, rather than to farmers. Explores the ba
Sampling Techniques for Measuring and Forecasting Crop Yields
Extract: This manual assembles information on mathematical modeling concerning crop yields for domestic and foreign users of crop statistics. In providing technical assistance to countries in the collection of agricultural data, measuring crop yields is important for decisions affecting imports and exports, as well as recommending ways of improving crop techniques. Major emphasis is placed on forecasting of current-year yield per acre prior to harvest. This publication could serve as a basis for training courses as well as a reference manual for countries developing or modifying agricultural data systems. It is important to emphasize, however, that this manual is not expected to serve as a training module without an instructor or consultant experienced in crop sampling and yield modeling.
Crop Evolution, Adaptation and Yield
In this major 1993 work, Lloyd Evans provides an integrated view of the domestication, adaptation and improvement of crop plants, bringing together genetic diversity, plant breeding, physiology and aspects of agronomy. Considerations of yield and maximum yield provide continuity throughout the book. Food, feed, fibre, fuel and pharmaceutical crops are all discussed. Cereals, grain legumes and root crops, both temperate and tropical, provide many of the examples, but pasture plants, oilseeds, leafy crops, fruit trees and others are also considered. After the introductory chapter, the increasing significance of crop yields to the world's food supply is highlighted. The next three chapters consider changes to crop plants over the last ten thousand years, including domestication, adaptation and improvement. Aimed at research workers and advanced students in crop physiology and ecology, agronomy and plant breeding, this book also reaches conclusions of relevance to those concerned with developmental policy, agricultural research and management, environmental quality, resource depletion and human history.
Climate change, agriculture, and potential crop yields in Central Asia
Agriculture in Central Asia is vulnerable to climate change due to rising aridity, declining availability of water resources for irrigation, and low adaptive capacity. We use climate data from CMIP5 with RCP8.5 for greenhouse gas emissions and the DSSAT crop model to investigate how yields of key crops in Central Asia will be affected by climate change. We distinguish changes in yields between spring and winter plantings, between irrigated and rainfed crops, and between crops grown with high and low amounts of fertilizer. The results suggest that countries (and areas within countries) that either have moderate summers or grow a number of crops in a relatively cold winter will benefit from climate change, while countries that grow many of the crops in the summer will experience losses.
Crop Yields
In this work the authors present current research in the study of the production, management practices and impact of climate change on crop yields across the globe. The topics discussed include the peculiarities of photosynthesis on wheat genotypes contrast in grain yield and their use in breeding programs, options for optimal use of water resources for securing future agricultural production, the potential impact of climate change on wheat production in Australia, and improvement of cotton production in arid saline soils by beneficial microbes.
Improving Crop Yields in Sub-Saharan Africa - What Does the East African Data Say
Recent micro level data from East Africa is used to benchmark aggregate data and assess the role of agricultural inputs in explaining variation in crop yields on smallholding plots. Fertilizer, improved seeds, protection against erosion and pesticides improve crop yields in Rwanda and Ethiopia, but not Uganda, possibly associated with lack of use there. With all positive yield determinants in place, wheat and maize yields could increase fourfold. The data hints at the negative effect of climate change on yields and the benefits of accompanying measures to mitigate its adverse impact (access to finance and protection against erosion). The adverse effect of crop damage on yields varies between 12/13 percent (Rwanda, Uganda) to 36 percent (Ethiopia). Protection against erosion and investment financing mitigate these effects considerably.
Crop Yields
In this book the authors present current research in the study of the production, management practices and impact of climate change on crop yields across the globe. Topics discussed include the peculiarities of photosynthesis on wheat genotypes contrast in grain yield and their use in breeding programs; options for optimal use of water resources for securing future agricultural production; the potential impact of climate change on wheat production in Australia; and improvement of cotton production in arid saline soils by beneficial microbes.
