Nitrogen balances and nitrogen-use efficiency of different organic and conventional farming systems

2016 ◽  
Vol 105 (1) ◽  
pp. 1-23 ◽  
Author(s):  
Hung-Chun Lin ◽  
Julia A. Huber ◽  
Georg Gerl ◽  
Kurt-Jürgen Hülsbergen
Keyword(s):  
Nitrogen Use Efficiency ◽  
Farming Systems ◽  
Conventional Farming ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Organic And Conventional Farming

Genetic approaches to enhancing nitrogen-use efficiency (NUE) in cereals: challenges and future directions

2015 ◽  
Vol 42 (10) ◽  
pp. 921 ◽  
Author(s):  
Trevor Garnett ◽  
Darren Plett ◽  
Sigrid Heuer ◽  
Mamoru Okamoto
Keyword(s):  
Nitrogen Use Efficiency ◽  
Economic Cost ◽  
Farming Systems ◽  
Genotype By Environment Interaction ◽  
Complex Nature ◽  
Environment Interaction ◽  
Nitrogen Use ◽  
Future Directions ◽  
Use Efficiency ◽  
High Yields

Over 100 million tonnes of nitrogen (N) fertiliser are applied globally each year to maintain high yields in agricultural crops. The rising price of N fertilisers has made them a major cost for farmers. Inefficient use of N fertiliser leads to substantial environmental problems through contamination of air and water resources and can be a significant economic cost. Consequently, there is considerable need to improve the way N fertiliser is used in farming systems. The efficiency with which crops use applied N fertiliser – the nitrogen-use efficiency (NUE) – is currently quite low for cereals. This is the case in both high yielding environments and lower yielding environments characteristic of cereal growing regions of Australia. Multiple studies have attempted to identify the genetic basis of NUE, but the utility of the results is limited because of the complex nature of the trait and the magnitude of genotype by environment interaction. Transgenic approaches have been applied to improve plant NUE but with limited success, due, in part, to a combination of the complexity of the trait but also due to lack of accurate phenotyping methods. This review documents these two approaches and suggests future directions in improving cereal NUE with a focus on the Australian cereal industry.

Agronomic and environmental causes of yield and nitrogen use efficiency gaps in Chinese rice farming systems

2018 ◽  
Vol 93 ◽  
pp. 40-49 ◽  
Author(s):  
Ning An ◽  
Wenliang Wei ◽  
Lei Qiao ◽  
Fusuo Zhang ◽  
Peter Christie ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Farming Systems ◽  
Rice Farming ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Environmental Causes

Nitrogen fertilizer value of cattle manure applied on soils originating from organic and conventional farming systems

Agronomie ◽  
2002 ◽  
Vol 22 (7-8) ◽  
pp. 789-800 ◽  
Author(s):  
Monika Langmeier ◽  
Emmanuel Frossard ◽  
Michael Kreuzer ◽  
Paul Mäder ◽  
David Dubois ◽  
...  
Keyword(s):  
Nitrogen Fertilizer ◽  
Farming Systems ◽  
Cattle Manure ◽  
Conventional Farming ◽  
Fertilizer Value ◽  
Organic And Conventional Farming

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
Sign in / Sign up

Export Citation Format

Share Document