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Plant and Cell Physiology 2009 50(1):2-4; doi:10.1093/pcp/pcn195
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© The Author 2008. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org

Editorial

Plant Nutrition—Roots of Life for Fundamental Biology and Better Crop Production

Toru Fujiwara1,2 and Toru Matoh3

1Biotechnology Research Center, The University of Tokyo, Japan
2Solution-Oriented Research for Science and Technology (SORST), Japan Science and Technology Agency (JST), Japan
3Graduate School of Agriculture, Kyoto University, Japan

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The world's population reached 6.7 billion in 2008 and continues to grow. 2008 was also a year marked by high food prices, and indeed food crises have arisen in developing countries. Given the increase in population and decrease in available arable land, the public expects us, the plant science community, to provide technologies that maintain and increase food production. Plants grow in the soil, take up mineral nutrients and generate food for us. Therefore, the uptake of mineral nutrients by plants from the soil is a critical step, in terms of both food production and global element cycling.

The human body contains about 1.5 kg of nitrogen atoms. Every human eats nearly three times this quantity of nitrogen every year in the form of protein, equivalent to 73 g of protein a day. The current world population consumes some 28 million tonnes of protein-nitrogen every year. . . . [Full Text of this Article]


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