Add to ORKGIt is safe to say that among the elements which are essential for plant life, nitrogen plays the most prominent part. While nitrogen is considered to be one of the most useful constituents of soil organic matter or humus, it is the available nitrogen which is of especial value. The data given in this bulletin as well as in previous publications, show, in agreement with numerous investigations by others, that the amount of ammonia in soils is quite small, ranging from a few thousandths to a few hundredths of one per cent
Nitrogen is the plant nutrient most universally needed for high crop yields. The most abundant sourc...
In a paper read at the meeting last year it was pointed out that when a soluble form of organic matt...
Harvested by the University of Missouri Extension website."Nitrogen is important for all plants to l...
It was shown in previou\u27 publications that the acid-soluble organic nitrogen in Iowa soils as wel...
l\u27he nitrogen recognized as one of the most important elements for plants, if not the most necess...
In view of the fact that no data had ever been obtained on the quantitative relationships of the org...
This publication explains the chemistry of nitrogen, the processes by which nitrogen is added to and...
Nitrogen occupies an important and prominent place in plant and animal nutrition. Large quantities a...
The article discusses the risk of damaging the environment brought by nitrogen fertilisers which are...
1 online resource (PDF, 4 pages)This archival publication may not reflect current scientific knowle...
Nitrogen (N) is an essential nutrient for animals and plants. For cereal crops, it is often the most...
to deduce the following distribution of total N in humic substances and soils: proteinaceous materia...
Nitrogen, the most abundant element in the atmosphere, is necessary for life. But too much of this v...
Theoretically, the ideal method for determining ammonia in soils would give the absolute amount of a...
The agriculturally important soils of the lower Mississippi alluvial plain typically display surpris...
Nitrogen is the plant nutrient most universally needed for high crop yields. The most abundant sourc...
In a paper read at the meeting last year it was pointed out that when a soluble form of organic matt...
Harvested by the University of Missouri Extension website."Nitrogen is important for all plants to l...
It was shown in previou\u27 publications that the acid-soluble organic nitrogen in Iowa soils as wel...
l\u27he nitrogen recognized as one of the most important elements for plants, if not the most necess...
In view of the fact that no data had ever been obtained on the quantitative relationships of the org...
This publication explains the chemistry of nitrogen, the processes by which nitrogen is added to and...
Nitrogen occupies an important and prominent place in plant and animal nutrition. Large quantities a...
The article discusses the risk of damaging the environment brought by nitrogen fertilisers which are...
1 online resource (PDF, 4 pages)This archival publication may not reflect current scientific knowle...
Nitrogen (N) is an essential nutrient for animals and plants. For cereal crops, it is often the most...
to deduce the following distribution of total N in humic substances and soils: proteinaceous materia...
Nitrogen, the most abundant element in the atmosphere, is necessary for life. But too much of this v...
Theoretically, the ideal method for determining ammonia in soils would give the absolute amount of a...
The agriculturally important soils of the lower Mississippi alluvial plain typically display surpris...
Nitrogen is the plant nutrient most universally needed for high crop yields. The most abundant sourc...
In a paper read at the meeting last year it was pointed out that when a soluble form of organic matt...
Harvested by the University of Missouri Extension website."Nitrogen is important for all plants to l...