Growth, Nitrogen Use Efficiency, and Leachate Comparison of Subirrigated and Overhead Irrigated Pale Purple Coneflower Seedlings

Pale purple coneflower [Echinacea pallida (Nutt.) Nutt.] was grown within three container volumes (90, 105, and 340 cm3) under subirrigation and overhead irrigation treatments. Subirrigated coneflowers showed increased seedling quality with more biomass (14%), better nitrogen use efficiency (13%), greater nitrogen content (N; 11%), more height (15%), and lower mortality compared with overhead-irrigated seedlings. Plants also showed increasing height, biomass, and N content with increasing container volume. Overhead irrigated coneflowers had more leachate compared with subirrigated seedlings, which produced none. Leachate electrical conductivity and N were monitored throughout the growing season and decreased at similar rates, whereas subirrigation effluent levels remained constant. Subirrigation offers a viable alternative to traditional overhead irrigation systems by producing this native plant with equal or better quality without discharging potentially harmful leachate into the environment.

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Effects of Alternate Irrigation with Saline and Non-Saline Water on Sorghum Crop Manured with Elaeagnus angustifolia Leaves Using 15N

The Open Agriculture Journal ◽

10.2174/1874331501711010024 ◽

2017 ◽

Vol 11 (1) ◽

pp. 24-34 ◽

Cited By ~ 2

Author(s):

Farid Al-Ain ◽

Mohamad Al-Chamma'a ◽

Fawaz Kurdali

Keyword(s):

Nitrogen Uptake ◽

Nitrogen Use Efficiency ◽

Green Manure ◽

Saline Water ◽

Agricultural Practice ◽

Elaeagnus Angustifolia ◽

Irrigation Systems ◽

Nitrogen Use ◽

Different Types ◽

Use Efficiency

Background:A pot experiment was conducted to determine the effects of alternate irrigation with saline (S) and fresh (F) water on growth, nitrogen uptake and nitrogen use efficiency in Sorghum crop (Sorghum bicolorL.) manured withElaeagnus angustifolialeaves (GM) using15N.Method:Five types of irrigation systems abbreviated as (F, 2F:1S, 1F:1S, 1F:2S and S) and one rate of Green Manure (GM) were employed.Result:Results showed reductions in both Dry Matter yield (DM) and nitrogen uptake (NY) in sorghum grown under different types of irrigation systems as compared with the control (F). The reduction rates of these two parameters increased with increasing number of irrigations with saline water. However,E. angustifolialeaves applied as green manure mitigated the harmful effect of salinity on plant growth parameters. The percent increments as a result of GM application were 9, 19, 43, 43 and 65% for DM, and 33, 30, 42, 36 and 60% for NY in F, 2F:1S, 1F:1S, 1F:2S and S, respectively. Nitrogen use efficiency of added green manure ranged between 25 and 47% in the different types of irrigation systems. Our results indicated that increment of NY in green manured sorghum plants was mainly attributed to its nitrogen availability. According to the availability of S and F water resources, and the economic returns aimed by farmers in the semi-arid regions, it is recommended to use (2F:1S, 1F:1S and 1F:2S) in combination withE. angustifolialeaf GM. Such a procedure can be considered as a promising agricultural practice to improve yield with a proper water resource investment.

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Fertigation of Maize with Digestate Using Drip Irrigation and Pivot Systems

Agronomy ◽

10.3390/agronomy10101453 ◽

2020 ◽

Vol 10 (10) ◽

pp. 1453

Author(s):

Viviana Guido ◽

Alberto Finzi ◽

Omar Ferrari ◽

Elisabetta Riva ◽

Dolores Quílez ◽

...

Keyword(s):

Nitrogen Content ◽

Soil Nitrogen ◽

Drip Irrigation ◽

Liquid Fraction ◽

Growing Season ◽

Northern Italy ◽

Irrigation Systems ◽

Nitrogen Use ◽

Use Efficiency ◽

Reference Fields

Digestate is a nutrient-rich fertilizer and appropriate techniques are required for its application during the maize season to reduce losses and increase the nitrogen use efficiency (NUE). The performance of two different fertigation techniques (drip irrigation and pivot) were assessed using the digestate liquid fraction. A two-year field test was carried out at two different sites in Lombardy, northern Italy. At each site, fertigation with pivot (P-F, site 1) or drip (D-F, site 2) systems was compared to reference fields where the same irrigation techniques without addition of digestate were used. During the two seasons, the performance of the fertigation systems, amount of fertilizers used, soil nitrogen content, yields, and nitrogen content of the harvested plants were monitored. The digestate application averaged 5 m3/ha per fertigation event with P-F and 4.9 m3/ha with D-F corresponding, respectively, to 28 and 23 kg N/ha. Both irrigation systems were suitable for fertigation provided that the digestate was adequately filtrated. Our results suggest that fertigation with digestate, if properly managed, can be applied during the growing season up to the full amount of nitrogen required by the crop.

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Dynamic biochar effects on nitrogen use efficiency, crop yield and soil nitrous oxide emissions during a tropical wheat-growing season

Journal of Environmental Management ◽

10.1016/j.jenvman.2019.109638 ◽

2019 ◽

Vol 252 ◽

pp. 109638 ◽

Cited By ~ 4

Author(s):

Thalita Fernanda Abbruzzini ◽

Christian Andrew Davies ◽

Fernando Henrique Toledo ◽

Carlos Eduardo Pellegrino Cerri

Keyword(s):

Nitrous Oxide ◽

Crop Yield ◽

Nitrogen Use Efficiency ◽

Growing Season ◽

Nitrous Oxide Emissions ◽

Nitrogen Use ◽

Use Efficiency

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Faculty Opinions recommendation of Leaf-level nitrogen use efficiency: definition and importance.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.717964300.793465842 ◽

2012 ◽

Author(s):

Christian Körner

Keyword(s):

Nitrogen Use Efficiency ◽

Nitrogen Use ◽

Leaf Level ◽

Use Efficiency

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Faculty Opinions recommendation of PvNAC1 and PvNAC2 Are Associated with Leaf Senescence and Nitrogen Use Efficiency in Switchgrass.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.726131278.793514339 ◽

2016 ◽

Author(s):

Elizabeth Hood

Keyword(s):

Leaf Senescence ◽

Nitrogen Use Efficiency ◽

Nitrogen Use ◽

Use Efficiency

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

IRAQI JOURNAL OF AGRICULTURAL SCIENCES ◽

10.36103/ijas.v51i4.1093 ◽

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.

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