Results 71 to 80 of about 950,917 (198)

Field experiments on concentrated organic nitrogen fertilizers [PDF]

open access: yes, 1958
RESP ...
Cooke, E. H.   +2 more
core   +1 more source

Nitrogen in Feed and Fertilizer

open access: yesJournal of AOAC INTERNATIONAL, 1973
Abstract Low values by Raney powder method 2.056 have been obtained on a few samples from one manufacturer. The values ranged from 0.2 to 5.0% nitrogen low. In relation to pollution, further work is reported in investigating digestion conditions and use of copper as a catalyst in Kjeldahl digestions.
openaire   +1 more source

Know Your Nitrogen Fertilizers

open access: yes, 1955
Nitrogen fertilizers have been accepted very rapidly in Iowa - so rapidly that on-farm knowledge of nitrogen fertilizers and how they act hasn't kept pace with use.
Stritzel, J.
core  

Nitrogen fertilizers for spring barley and wheat [PDF]

open access: yes, 1958
RESP ...
Cooke, G. W., Widdowson, F. V.
core   +1 more source

Orientation of nitrogen transformation processes in the soil with corn growing under the different fertilization practices

open access: yesAgricultural Science and Practice, 2014
Aim. To explore the peculiarities of nitrogen transformation in sod-podzolic soils with corn growing under dif- ferent fertilizer types and the effect of bacterization. Methods.
V. Volkogon   +3 more
doaj   +1 more source

Response of Sunflower Yield and Phytohormonal Changes to Azotobacter,Azospirillum,Pseudomonas and Animal Manure in a Chemical Free Agroecosystem [PDF]

open access: yes, 2011
There are new trends in agriculture to move toward the low input systems with the lower application of chemical fertilizers. To reach this goal, different methods, such as the application of biofertilizers, may be used.
Mohammad , Zahedi   +5 more
core   +1 more source

Nitrogen Fertilizers Technologies for Corn in Two Yield Environments in South Brazil. [PDF]

open access: yesPlants (Basel), 2022
Cassim BMAR   +7 more
europepmc   +1 more source

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