While nitrogen dioxide vertical column concentrations above central and eastern Europe and parts of the East Coast of the United States have been either static or exhibiting a small decrease, there is a clear and significant increase over China,
Quotes about nitrogen (16 Quotes)
Is it always economical to shoot for maximum yield Research has shown that it's not. It may take the same amount of nitrogen to reach 179 bushels per acre as it does to only reach 170 bushels per acre. It's impossible to determine at what point the nitrogen level is reached to where it is no longer a benefit to gain more yield without a nitrogen rate trial in every field.
All we are is a lot of talking nitrogen.
China's nitrogen dioxide concentration varies according to season,
Nitrogen efficiency in crop production, such as corn, is estimated to be only about 33 percent, suggesting that under current nitrogen recommendation methods the majority of nitrogen applied is going elsewhere other than into the crop. On top of that, it's becoming more of an economic penalty to over-apply nitrogen.
The practice of intensive manuring emerged as the dominant mark of the Chinese system. All human and animal nitrogenous wastes were carefully husbanded in large terra-cotta vats where they were aged, and then ladled into irrigation ditches. Every 2,000 pounds of night soil provided 12.7 pounds of nitrogen, 4 pounds of potassium, and 1.7 pounds of phosphorus. Ashes were added to this compost from any kind of fire.
When we did that, we found that putting a little nitrogen in these molecules explained the troubling molecules. This discovery takes this reservoir of molecules that we didn't think were interesting and transforms all this stuff into something of biologic
The companies manufacturing nitrogen can make more money selling natural gas than running fertilizer plants. And when fertilizer is in short supply, the prices go even higher.
We sometimes freeze the specimen with liquid nitrogen, which is extremely cold, you know. This is another technique we use now - but the specimens are not alive.
In a 12-month study using Blue Sun's B20 biodiesel, the National Renewable Energy Laboratory (NREL) found nitrogen oxide (NOx) was reduced by 4 percent compared to conventional diesel.
Nitrogen fertilizer is used on all crops produced in this country, but it is a key plant nutrient to produce corn a critical crop to Illinois farmers.
Many years ago it was taught that plants and animals were composed of different materials: plants, of a chemical substance of three elements,- carbon, hydrogen, and oxygen; animals of one of four elements, nitrogen being added to the other three.
One reason is that the system assumes the soil is a blank medium and devoid of natural nitrogen. We know that's not true. And the problem we run into is that we don't know exactly how much nitrogen is in the soil and how much will be available to the crop
Corn doesn't care what kind of nitrogen it gets.
Odor is one of the major issues. The waste also has a higher nutrient level as blood is rich in protein and nitrogen and those nutrients have to be properly disposed of.
Current nitrogen recommendations assume four things yield potential doesn't vary year after year, the yield level the soil will support without supplemental nitrogen is negligible, pre-plant nitrogen will be available throughout the growing season, and soil uniformity produces similar yield results across the field. Growers know that none of these assumptions are entirely accurate, and they can potentially be avoided using optical sensors.