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Reducing reliance on nitrogen fertilizers via biological nitrogen fixation（图）
reliance nitrogen fertilizers biological nitrogen fixation
2020/4/3
Crop yields have increased substantially over past decades, along with increasing use of nitrogen fertilizer. While nitrogen fertilizer benefits crop growth, it has negative effects on the environment...
Michigan's Sugar Maples Will Struggle In A Warmer,Drier Future Despite Help From Nitrogen Pollution（图）
Michigan Sugar Maples Warmer Drier Nitrogen Pollution
2018/2/1
Though Michigan's sugar maples benefit from the growth-promoting effects of nitrogen compounds in the environment, those gains will not fully offset the added stresses of growing under a drier climate...
Washington State University biologist Mechthild Tegeder has developed a way to dramatically increase the yield and quality of soybeans.
Her greenhouse-grown soybean plants fix twice as much nitrogen ...
Neutralizing acidic forest soils boosts tree growth,causes spike in nitrogen export
Neutralizing acidic soils tree growth causes spike nitrogen export
2016/7/4
A legacy of acid rain has acidified forest soils throughout the northeastern US, lowering the growth rate of trees. In an attempt to mitigate this trend, in 1999 scientists added calcium to an experim...
Study finds that maize roots have evolved to be more nitrogen efficient
maize roots more nitrogen efficient
2015/4/29
Selective breeding of maize over the last century to create hybrids with desirable shoot characteristics and increased yield may have contributed indirectly to the evolution of root systems that are m...
Research shows impacts from airborne nitrogen（图）
airborne nitrogen fossil fuels fertilizers agriculture
2009/12/23
The impact of airborne nitrogen released from the burning of fossil fuels and widespread use of fertilizers in agriculture is much greater than previously recognized and even extends to remote alpine ...
Areas of turf-forming species created and maintained by humans for aesthetic and recreational (not grazing) purposes, i.e. “urban grasslands” are an extremely common, but poorly studied ecosystem type...
Is Nitrogen the New Carbon?
Nitrogen the New Carbon
2009/12/16
In looking forward to the next Green Revolution, researchers have been carefully examining the role of nitrogen fixation in delivering successful crops around the globe.
Illinois Soil Nitrogen Test Measures Microbial Nitrogen
Illinois Soil Nitrogen Test Microbial Nitrogen
2009/12/16
The Illinois Soil Nitrogen Test (ISNT) was developed for this purpose, and involves estimation of gaseous ammonia liberated by heating the soil with strong alkali in a Mason jar. Several studies have ...