نتایج جستجو برای: grain agricultural product

تعداد نتایج: 434259  

Journal: :Journal of environmental quality 2009
Lowell E Gentry Mark B David Frederick E Below Todd V Royer Gregory F McIsaac

Simple nitrogen (N) input/output balance calculations in agricultural systems are used to evaluate performance of nutrient management; however, they generally rely on extensive assumptions that do not consider leaching, denitrification, or annual depletion of soil N. We constructed a relatively complete N mass balance for the Big Ditch watershed, an extensively tile-drained agricultural watersh...

2014
Guanghua Yin Jian Gu Fasheng Zhang Liang Hao Peifei Cong Zuoxin Liu

Maize grain yield varies highly with water availability as well as with fertilization and relevant agricultural management practices. With a 311-A optimized saturation design, field experiments were conducted between 2006 and 2009 to examine the yield response of spring maize (Zhengdan 958, Zea mays L) to irrigation (I), nitrogen fertilization (total nitrogen, urea-46% nitrogen,) and phosphorus...

2011
JEHAN BAKHT MOHAMMAD SHAFI HABIB REHMAN RAZI UDDIN SHAZMA ANWAR

Field experiment was conducted at KPK Agricultural University, Peshawar, Pakistan to find out the effect of planting methods on the yield and yield components of maize varieties. Analysis of the data revealed that planting methods had a significant effect on days to tasseling, days to silking, plant height, number of plants ha at harvest, thousand grain weight, grain yield, biological yield, fr...

Journal: :Sustainability 2021

Low technical efficiency and excessive usage of chemical fertilizer in grain production is a problem commonly faced by China many other developing countries, which leads to serious environment pollution high environmental governance cost. the largest rice producing consuming country, several kinds are grown all important edible grain. However, there has been no systematic research on kind diffe...

2005
Y.-J. WANG L. POLLAK

Cereal Chem. 70(2): 179-183 Sorghum grains varying in grain hardness or endosperm texture (soft dispersion in hot water. Parboiled grain with soft endosperm texture and intermediate) and starch composition (nonwaxy and waxy) were contained less dispersible and soluble starch than parboiled grain with parboiled. Whole grain (one volume) and water (three volumes) were intermediate endosperm textu...

1998
William James Adams

Agricultural activity, agricultural politics, and agricultural policy are interrelated. In this article, I discuss some of the linkages in the context of France’s Fifth Republic. I demonstrate that the geographic relationship inside France between agricultural product mix and voting behavior helps to explain French governmental conduct during three major episodes of international agricultural p...

2010
Weihua Gan Yuwei Zhu Tingting Zhang

Nowadays the low quality of agricultural products has resulted in some accidents in China. People are waiting for the arrival of the safe and high quality agricultural products than before. This paper takes the agricultural products’ safety as an example to analyze the RFID application. Firstly, this paper describes the characteristics of logistics activities about the agricultural products. Th...

2017
Michael Clark David Tilman

Global agricultural feeds over 7 billion people, but is also a leading cause of environmental degradation. Understanding how alternative agricultural production systems, agricultural input efficiency, and food choice drive environmental degradation is necessary for reducing agriculture’s environmental impacts. A meta-analysis of life cycle assessments that includes 742 agricultural systems and ...

2017
Min Su Rui Jiang Rongrong Li

Developing low-carbon agriculture requires investigating the trajectory, decoupling statuses, and driving forces of agricultural carbon emissions. This study explored the evolution of agricultural carbon emissions based on 18 kinds of major carbon emission sources in Henan Province of China, which produces approximately one-tenth of China’s total grain output. We then analyzed the relationship ...

2008
Lin Deng Xiaoming Wen

In order to protect agricultural product information and copyright, this paper proposes an efficient bar-code watermark system with digital signature. The proposed system adopts digital signature to prevent a buyer from unauthorized copies and to prevent a seller from forged unauthorized copies. The proposed system also encodes the signature with bar-code and embeds the bar-code image into the ...

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