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Nitrous Oxide Emissions from Rice Fields - Deepanjan Majumdar - Bog - Nova Science Publishers Inc - Plusbog.dk

Nitrous Oxide Emissions from Rice Fields - Deepanjan Majumdar - Bog - Nova Science Publishers Inc - Plusbog.dk

Atmospheric presence of nitrous oxide (N2O) is known for many years but its concentration has increased alarmingly by 46 ppbv (17%) since 1750 and by 0.0008 ppb yr-1 during 1990-1999. Nitrous oxide is a 296 times more potent greenhouse gas than CO2 on a 100-year time scale and causes enhanced greenhouse effect, a phenomenon first discovered in 1976. Nitrous oxide emission from 1750 to 2000 has caused an atmospheric radiative forcing of 0.15 W m-2. Moreover, N2O is indirectly involved in catalytic destruction of stratospheric ozone. Due to its atmospheric lifetime of about 120-150 years, atmospheric N2O burden will persist for many years even if its emission is stopped now. Various estimates differ widely on the contribution of agriculture in anthropogenic N2O emissions viz. 96%, 81%, 76%, 65% etc. Although several studies on N2O emissions from rice have been done in last two decades, no clear-cut contribution of rice or any other crop, for that matter, on atmospheric N2O loading has been worked out till date. Only less than 1% of applied N is lost through N2O from rice fields and its overall amount and radiative forcing are much lower than CH4, the major greenhouse gas emitted from rice fields. Possible sources of N for N2O emission in rice fields are fertilisers, manures and green manures, irrigation water, N fixed by floodwater algae, plant debris and as long as rice cultivation exists, N2O will be emitted. It has been suggested that N2O emission from agriculture might increase by 90% during 1986 to 2026. Monitoring of N2O from rice hasn''t been done as extensively as CH4, as emission of former is low due to reduction to N2 in flooded rice fields. Since, overall amount of fertiliser N usage and acreage of rice are increasing, N2O emission might increase appreciably globally and so, monitoring of N2O emission from different rice ecosystems and estimating realistic regional and global budgets form rice ecosystems assume high significance. Efforts to predict N2O emissions through simulation of soil N pathways are underway, but it is difficult since emission from rice soil is controlled by the real-time field conditions and fluctuations in cultural practices. Whatever be the emission, it creates environmental disturbance slowly but surely. Efforts should be focused on the mitigation of N2O emission without compromising crop production, degrading the environment and creating pressure on financial resources.

DKK 534.00
1

Senate of the U.S. - Charles M Rice - Bog - Nova Science Publishers Inc - Plusbog.dk

Fungicides - - Bog - Nova Science Publishers Inc - Plusbog.dk

Charcoal - Eric N. Tyrone - Bog - Nova Science Publishers Inc - Plusbog.dk

Urban Slums & the Social Production of Infant Mortality Rates in the Less Developed Countries - James Rice - Bog - Nova Science Publishers Inc -

State Foreign Operations & Related Programs - - Bog - Nova Science Publishers Inc - Plusbog.dk

High Agricultural Commodity Prices - Randy Schnepf - Bog - Nova Science Publishers Inc - Plusbog.dk

High Agricultural Commodity Prices - Randy Schnepf - Bog - Nova Science Publishers Inc - Plusbog.dk

All major U.S. agricultural program crops -- corn, barley, sorghum, oats, wheat, rice, and soybeans -- have exhibited extreme price volatility since mid-2007, while rising to record or near-record levels in early 2008. Several international organisations have announced that the sharply rising commodity prices are likely to have dire consequences for the world''s vulnerable populations, particularly in import-dependent, less developed nations. In the United States, high commodity prices have pushed farm income to successive annual records and have sharply lowered government farm program costs, but they have also stoked the flames of food price inflation and have raised costs for livestock producers and food processors. In addition, high, unexpectedly volatile prices have increased the risk and costs associated with grain merchandising. In particular, they have dramatically increased the cost of routine hedging activities (i.e., pricing commodities for purchase, delivery, or use at some future date) at commodity futures exchanges and, as a result, have diminished "forward contracting" opportunities for grain and oilseed producers who are eager to take advantage of record high market prices. For some crops (particularly for wheat and rice), the price increases are likely to be relatively short-term in nature and are due to weather-related crop shortfalls in major producer and consumer countries, a weak U.S. dollar that has helped spark large increases in U.S. exports, a bidding war among major U.S. crops for land in the months leading up to spring planting in 2008, and the often perverse price effects resulting from international policy responses by several major exporting and importing nations to protect their domestic markets. Assuming a return to normal weather, these factors will likely self-correct within two growing seasons as global supplies are replenished and prices moderate. For coarse grains (corn, sorghum, barley, oats, and rye), oilseeds, and oilseed products (e.g., vegetable oil and meal), the price increases have also been due to strong, sustained demand deriving from two sources: robust income growth in developing countries (e.g., China and India), which has contributed to increased demand for meat products and the feed grains needed to produce that meat; and growing agricultural feedstock demand to meet large increases in government biofuel-usage mandates or goals in the United States, the European Union, and other countries. Market analysts, including the United Nations'' Food and Agricultural Organization (FAO), are predicting record global grain and oilseed production in 2008 in response to the high market prices. However, given the overall strength in demand growth, most market analysts predict that when commodity supplies eventually recover and prices moderate from current high levels, the new equilibrium prices will be significantly higher than has traditionally been observed during periods of market balance. This book examines the causes, consequences, and outlook for prices of the major U.S. program crops

DKK 405.00
1

Ochratoxin A and Aflatoxin B1 - - Bog - Nova Science Publishers Inc - Plusbog.dk

Ochratoxin A and Aflatoxin B1 - - Bog - Nova Science Publishers Inc - Plusbog.dk

Ochratoxin A and Aflatoxin B1: New Research first presents the latest knowledge regarding the occurrence of ochratoxin A in dry-cured meat and dairy products, as well as relevant food safety issues. Different remediation strategies such as heating, ripening, drying, storage and the use of microbial cultures, which have been adopted for the prevention or decontamination of ochratoxin A, are critically reviewed. Next, the authors assess the occurrence of ochratoxin A in different types of dry-fermented sausages and hams produced by various households in Croatia, proposing that in order to avoid contamination, the production of household-based meat and meat products should run under standardized and well-controlled conditions. In the subsequent study, a total of sixty mold-contaminated rice, corn and groundnut samples were collected from one of the Cauvery delta regions of Tamil Nadu, India, and analyzed to determine the co-occurrence of ochratoxin A and citrinin, and the respective mycotoxigenic fungal strains that produce these toxins. Besides the known adverse effects of alcohol, beer could also be the source of several mycotoxins such as aflatoxin B1. Aflatoxin B1 is the most toxic among the identified aflatoxins and classified into group I as a human carcinogen by the International Agency for Research on Cancers. The stability of aflatoxin B1 during the brewing process, as well as the most important detection techniques and sample treatment used for the determination of this compound are evaluated.

DKK 624.00
1

Durum Wheat - Reza Mohammadi - Bog - Nova Science Publishers Inc - Plusbog.dk

Durum Wheat - Reza Mohammadi - Bog - Nova Science Publishers Inc - Plusbog.dk

In this book, experienced scientists in the field describe the importance of durum wheat as an adapted cash crop for drylands in detail, as well as a valuable food crop that must be paid more attention in relation to climate change, global warming, world population growth rate and declining food production resource. It is a ready valuable reference on the subject and reinforces the understanding for durum wheat production promotion as an environmentally sustainable and profitable crop and also its health benefits for its consumers. Various elements of durum wheat are described, highlighting associated breeding and analyzing the experiences and challenges. It proposes some practical innovations and new areas of research for promotion of durum production in drylands and also its consumption instead of major food crops that are not as water-use efficient and have lower nutritional value than durum wheat, such as rice that are over consumed by people in dryland areas. This book also describes the trends in grain yield and quality of durum wheat and its importance as main sources of calories and proteins in many developing countries. It also reports genetic gains achieved by plant breeding in the last decades; and gathers known functional information on the genes conferring biotic and abiotic stresses in durum wheat to cope with climate variable environmental conditions. This book is an invaluable source of information for scientists, teachers, students, agricultural policy makers, and pasta and other durum products companies. Moreover, nutritionists must read the chapter about the importance of durum as a valuable food crop, to realize that in their food recommendation to people they must take into consideration the Earth and its diminishing food production resources.

DKK 624.00
1

Traditional Chinese Foods - Tan Hongzhuo - Bog - Nova Science Publishers Inc - Plusbog.dk

Traditional Chinese Foods - Tan Hongzhuo - Bog - Nova Science Publishers Inc - Plusbog.dk

It is generally admitted that the expression ''traditional food'' refers to a product with specific raw materials, and/or with a recipe known for a long time, and/or with a specific process. China has a wealth of traditional foods such as Chinese steamed bread, Chinese noodles, Chinese rice noodles, Starch noodles (Vermicelli), Tofu, Sofu (soybean cheese), douchi (fermentation soybean), Chinese vinegar and many other foods. These traditional foods are an important component of Chinese people''s diet and the basis for their food habits and nutrition. They also constitute an essential aspect of their cultural heritage and related closely to the Chinese people''s historical background and to the environment in which they live. During the last few decades, the development of international food trade and the extensive urbanisation process which have affected life-styles to a large extent in many parts of the world have resulted in a sizeable decrease in the consumption of some kinds of traditional foods and a relative neglect in the cultivation of traditional food crops. Some traditional foods had withered away or are withering away. In recent years, as a result of food globalisation, the consumption of traditional foods has increased considerably and many of these foods are concurrent with easy-to-prepare, processed, semi-processed and high-tech foods. It was decided therefore that a book should be carried out to document existing Chinese traditional foods in China and to assess their nutritional value and contribution to the diet. Among many new works on food, however, few studies address the Chinese foodways, despite their enormous and continual influence on local food habits around the world. Even classic works on Chinese food provide us with only basic information about China itself, or interpret Chinese foodways in the restricted local food scene and within Chinese history. This new book, however provides, an up-to-date reference for traditional Chinese foods and a detailed background of history, quality assurance, and the manufacture of general traditional food products. It contains topics not covered in similar books.

DKK 1034.00
1