scholarly journals Erratum: Nitrogen use efficiency on dairy farms with different grazing systems in northwestern Germany (2020 Environ. Res. Commun. 2 105002)

2020 ◽  
Vol 2 (11) ◽  
pp. 119601
Author(s):  
Philipp Löw ◽  
Yusuf Nadi Karatay ◽  
Bernhard Osterburg
Keyword(s):  
Nitrogen Use Efficiency ◽  
Dairy Farms ◽  
Nitrogen Use ◽  
Grazing Systems ◽  
Use Efficiency

scholarly journals A comparison of nitrogen use efficiency and surplus in two dairy farms typologies

2009 ◽  
Vol 8 (sup3) ◽  
pp. 178-180 ◽  
Author(s):  
Severino Segato ◽  
Giorgio Marchesini ◽  
Igino Andrighetto
Keyword(s):  
Nitrogen Use Efficiency ◽  
Dairy Farms ◽  
Nitrogen Use ◽  
Use Efficiency

scholarly journals Nitrogen-use efficiency of organic and conventional arable and dairy farming systems in Germany

2021 ◽  
Author(s):  
Lucie Chmelíková ◽  
Harald Schmid ◽  
Sandra Anke ◽  
Kurt-Jürgen Hülsbergen
Keyword(s):  
Nitrogen Use Efficiency ◽  
Crop Production ◽  
Dairy Farms ◽  
N Balance ◽  
N Fixation ◽  
Mineral N ◽  
Nitrogen Use ◽  
Yearly Average ◽  
N Input ◽  
Use Efficiency

AbstractOptimising nitrogen (N) management improves soil fertility and reduces negative environmental impacts. Mineral N fertilizers are of key importance in intensive conventional farming (CF). In contrast, organic farming (OF) is highly dependent on closed nutrient cycles, biological N fixation and crop rotations. However, both systems need to minimise N balances and maximise nitrogen-use efficiency (NUE). NUE of organic and conventional crop production systems was evaluated in three regions in Germany by analysing N input, N output and N balance of 30 pairs of one OF and one CF farm each from the network of pilot farms for the period 2009–2011; indicators were calculated using the farm management system REPRO. CF had higher N input in all farm pairs. In 90% of the comparisons, N output of CF was higher than OF, in 7% it was the same and in 3% lower. NUE was higher in 60% of the OF, the same in 37% and lower in only 3%. The NUE of crop production in OF was 91% (arable farms: 83%; mixed/dairy farms: 95%) and the NUE in CF was 79% (arable farms: 77%; dairy farms: 80%). N balance was lower in 90% of the OF. The yearly average N balance was four times higher in CF (59 kg N ha−1 a−1) than in OF (15 kg N ha−1 a−1). The results show a huge individual variability within OF and CF. Organic mixed/dairy farms had the lowest N balances and the highest NUE. A further expansion of OF area can help to reduce high N balances and increase the NUE of crop production.

ROLE OF CONSERVATION AGRICULTURE IN IMPROVING PRODUCTION WATER AND NITROGEN EFFICIENCY OF WHEAT UNDER RAINFED CONDITIONS

2020 ◽  
Vol 51 (4) ◽  
pp. 1139-1148
Author(s):  
Othman & et al.
Keyword(s):  
Crop Rotation ◽  
Nitrogen Use Efficiency ◽  
Agricultural Research ◽  
Research Work ◽  
Conservation Agriculture ◽  
Nitrogen Efficiency ◽  
Research Station ◽  
Wheat Varieties ◽  
Nitrogen Use ◽  
Use Efficiency

The research work was conducted in Izra’a Research station, which affiliated to the General Commission for Scientific Agricultural Research (GCSAR), during the growing seasons (2016 – 2017; 2017 – 2018), in order to evaluate the response of two durum wheat verities (Douma3 and Cham5) and two bread wheat varieties (Douma4 and Cham6) to Conservation Agriculture (CA) as a full package compared with Conventional Tillage system (CT) under rainfed condition using lentils (Variety Edleb3) in the applied crop rotation. The experiment was laid according to split-split RCBD with three replications. The average of biological yield, grain yield,  rainwater use efficiency and nitrogen use efficiency was significantly higher during the first growing season, under conservation agriculture in the presence of crop rotation, in the variety Douma3 (7466 kg. ha-1, and 4162kg. ha-1, 19.006 kg ha-1 mm-1,  39.62 kg N m-2respectively). The two varieties Douma3 and Cham6 are considered more responsive to conservation agriculture system in the southern region of Syria, because they recorded the highest grain yields (2561, 2385 kg ha-1 respectively) compared with the other studied varieties (Cham5 and Douma4) (1951 and 1724 kg ha-1 respectively). They also exhibited the highest values of both rainwater and nitrogen use efficiency.

Grain Yield and Nitrogen Use Efficiency of Mid-seasonIndicaRice Cultivars Applied at Different Decades

2015 ◽  
Vol 41 (3) ◽  
pp. 422 ◽  
Author(s):  
Cheng-Xin JU ◽  
Jin TAO ◽  
Xi-Yang QIAN ◽  
Jun-Fei GU ◽  
Bu-Hong ZHAO ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Use ◽  
Use Efficiency
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