Sub-surface drip fertigation with conservation agriculture in a rice-wheat system: A breakthrough for addressing water and nitrogen 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.

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Drip fertigation promotes water and nitrogen use efficiency and yield stability through improved root growth for tomatoes in plastic greenhouse production

Agriculture Ecosystems & Environment ◽

10.1016/j.agee.2021.107379 ◽

2021 ◽

Vol 313 ◽

pp. 107379

Author(s):

Jing Hu ◽

Gretchen Gettel ◽

Zhaobo Fan ◽

Haofeng Lv ◽

Yiming Zhao ◽

...

Keyword(s):

Root Growth ◽

Nitrogen Use Efficiency ◽

Yield Stability ◽

Greenhouse Production ◽

Nitrogen Use ◽

Use Efficiency ◽

Drip Fertigation

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Response of yield, yield components and water-nitrogen use efficiency of winter wheat to different drip fertigation regimes in Northwest China

Agricultural Water Management ◽

10.1016/j.agwat.2021.107034 ◽

2021 ◽

Vol 255 ◽

pp. 107034

Author(s):

Junsheng Lu ◽

Tiantian Hu ◽

Chenming Geng ◽

Xiaolu Cui ◽

Junliang Fan ◽

...

Keyword(s):

Winter Wheat ◽

Nitrogen Use Efficiency ◽

Yield Components ◽

Northwest China ◽

Nitrogen Use ◽

Use Efficiency ◽

Drip Fertigation

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Assessment of Fertilizer Management Strategies Aiming to Increase Nitrogen Use Efficiency of Wheat Grown Under Conservation Agriculture

Agronomy ◽

10.3390/agronomy8120304 ◽

2018 ◽

Vol 8 (12) ◽

pp. 304 ◽

Cited By ~ 1

Author(s):

Jesús Santillano-Cázares ◽

Fidel Núñez-Ramírez ◽

Cristina Ruíz-Alvarado ◽

María Cárdenas-Castañeda ◽

Iván Ortiz-Monasterio

Keyword(s):

Nitrogen Use Efficiency ◽

Crop Production ◽

Management Practices ◽

Production Systems ◽

Conservation Agriculture ◽

Fertilizer Application ◽

Nitrogen Use ◽

Agronomic Efficiency ◽

Use Efficiency ◽

N Management

Sustainable crop production systems can be attained by using inputs efficiently and nitrogen use efficiency (NUE) parameters are indirect measurements of sustainability of production systems. The objective of this study was to investigate the effect of selected nitrogen (N) management treatments on wheat yields, grain and straw N concentration, and NUE parameters, under conservation agriculture (CA). The present study was conducted at the International Maize and Wheat Improvement Center (CIMMYT), in northwest, Mexico. Seventeen treatments were tested which included urea sources, timing, and methods of fertilizer application. Orthogonal contrasts were used to compare groups of treatments and correlation and regression analyses were used to look at the relationships between wheat yields and NUE parameters. Contrasts run to compare wheat yields or agronomic efficiency of N (AEN) performed similarly. Sources of urea or timing of fertilizer application had a significant effect on yields or AEN (p > 0.050). However, methods of application resulted in a highly significant (p < 0.0001) difference on wheat yields and agronomic efficiency of N. NUE parameters recorded in this study were average but the productivity associated to NUE levels was high. Results in this study indicate that wheat grew under non-critically limiting N supply levels, suggesting that N mineralization and reduced N losses from the soil under CA contributed to this favorable nutritional condition, thus minimizing the importance of N management practices under stable, mature CA systems.

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