Results 231 to 240 of about 33,898 (263)

Economics of nitrogen fertilization of barley and rapeseed as influenced by nitrate‐nitrogen level in soil

Communications in Soil Science and Plant Analysis, 1999
Abstract Field experiments were conducted at 92 sites for barley (Hordeum vulgare L. cv. Galt) and at 60 sites for rapeseed (Brassica campestris L. cv. Span) in central and north‐central Alberta to determine the influence of nitrate‐nitrogen (NO3‐N) level in soil (0–60 cm) on yield response to fertilizer nitrogen (N) and on Net Present Value (NPV) of ...
M. Nyborg, S. S. Malhi, G. Mumey, L. Kryzanowski, D. C. Penny, D. H. Laverty   +5 more
openaire   +1 more source

QUALITY OF STRAWBERRY 'CAMAROSA' WITH DIFFERENT LEVELS OF NITROGEN FERTILIZATION

Acta Horticulturae, 2009
'Camarosa' cultivar berries were evaluated to asses the influence of different nitrogen fertilizations on their quality. There were 4 levels of nitrogen fertilization: type 1 without nitrogen; types 2, 3 and 4 with 5 g/m 2 , 10 g/m 2 and 15 g/m 2 of nitrogen respectively.
openaire   +1 more source

Horizontal and vertical nitrate-nitrogen distribution under different nitrogen fertilization levels

Novenytermeles, 2013
The importance of nitrate (NO3-) in the internal nitrogen cycle of arable soils has been widely recognized, especially because of accumulation of nitrate-nitrogen in the soil profile and its implications for the environment. In order to determine vertical and horizontal nitrate-nitrogen distribution, soil samples were collected from a long term ...
Mesić, Milan, Zgorelec, Željka, Perčin, Aleksandra, Šestak, Ivana   +3 more
openaire   +1 more source

Corn Yield Response to Nitrogen Fertilizer Timing and Deficiency Level

Agronomy Journal, 2002
Nitrogen fertilizer is typically applied to corn (Zea mays L.) shortly before planting, but there are several reasons why later N applications may be of interest: to spread work away from the busy planting season, to avoid the frequent wet field conditions in spring, to reduce or remedy in‐season N loss in wet years, or to allow use of in‐season ...
Peter C. Scharf, William J. Wiebold, John A. Lory   +2 more
openaire   +1 more source

The effect of variety and fertilizer nitrogen level on red clover production

Grass and Forage Science, 1976
AbstractEstablished swards of two diploid and two tetraploid red clover varieties sown pure received 0, 75, 150, 225 or 300 kg ha−1 N fertilizer and were cut three times in June, August and October 1971. The total yields of herbage DM for red clover varieties ranged from 8.01 to 11.32 t ha−1; swards sown with tetraploids Hungaropoly and Hera Pajbjerg ...
FRAME, J., HARKESS, R. D., HUNT, I. V.
openaire   +2 more sources

Nitrogen Fertilizer Prices Above Expected Levels

2021
Schnitkey, Gary, Paulson, Nick, Zulauf, Carl, Swanson, Krista, Baltz, Jim, Schnitkey, Gary, Paulson, Nick, Zulauf, Carl, Swanson, Krista, Baltz, Jim   +9 more
openaire   +1 more source

Effects of nitrogen reduction combined with organic fertilizer on growth and nitrogen fate in banana at seedling stage

Environmental Research, 2022
Yuling Liu, Shaolong Sun
exaly  

Long-term excess nitrogen fertilizer increases sensitivity of soil microbial community to seasonal change revealed by ecological network and metagenome analyses

Soil Biology and Biochemistry, 2021
Bing-Bing Li, Sarah S Roley, David S Duncan   +2 more
exaly  

Global meta-analysis of nitrogen fertilizer use efficiency in rice, wheat and maize

Agriculture, Ecosystems and Environment, 2022
Xing Yu, Claudia Keitel, Feike A Dijkstra   +2 more
exaly  

Twice-split application of controlled-release nitrogen fertilizer met the nitrogen demand of winter wheat

Field Crops Research, 2021
Quan Ma, Rongrong Tao, Jinfeng Ding
exaly