Abstract
An experiment was conducted during three consecutiveseasons viz 2003/04, 2004/05 and 2005/06, at Gezira Research StationFarm (latitude 14°24'N, longitude 33°31'E, and altitude 405 m asl) todetermine the optimum irrigation interval and nitrogen and phosphorusfertilization of barley (Hordium vulgare L.) for forage. Experimentaldesign was split-split plot design with three replications. Three irrigationintervals, viz every 10 days (W1), 15 days (W2) and 20 days (W3) wereassigned to the main plots, two phosphorus levels, (0P) and 96 kg P 2 O5 /ha (1P) were assigned to the subplots and three nitrogen levels (0N), 96(1N) and 192 kg urea/ ha (2N) were assigned to the sub subplots. Theexperiment was run during the 3 rd week of November, with a local varietyof barley (Baladi). Quantity of the applied water, dry matter yield at milkstage and of dry forage water productivity (kg dry matter / m 3 of appliedwater) were determined. The three years mean quantity of water appliedto the treatments W1, W2 and W3 were 4525, 4320 and 4290 m 3 / ha,respectively. The dry matter yields of barley in the three seasonsdecreased with increase of the irrigation interval. The comparativelyhigher dry matter yield in 2004/05 was attributed to lower day/ nighttemperatures during tillering - milk stage (30 - 75 days after sowing). Thethree years dry forage water productivities were 1.07 kg/m 3 (W1), 0.82kg/m 3 (W2) and 0.71 kg/m 3 (W3). The forage yield increased withincrease in level of N fertilization. The effect of P fertilization on drymatter yield was not significant. The highest dry matter yield wasassociated with the combination of irrigation every 10 days and 192 kgurea /ha.Key words: Barley; forage production; irrigation intervals, N and Pfertilization
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Claims 7
Claim · model-written summary
Barley dry matter yield decreased as the irrigation interval increased over three seasons.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree1 - Treatment
- irrigation intervale1
- Outcome
- dry matter yielde1
- Direction
- decreasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“The dry matter yields of barley in the three seasons decreased with increase of the irrigation interval”
Claim · model-written summary
Three-year mean dry forage water productivity was 1.07, 0.82 and 0.71 kg/m3 at 10-, 15- and 20-day irrigation intervals, declining with longer intervals.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- irrigation intervale1
- Outcome
- dry forage water productivitiese2
- Direction
- decreaseinferrede2
- Value
- 1.07 kg/m 3e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The dry matter yields of barley in the three seasons decreased with increase of the irrigation interval”
e2“dry forage water productivities were 1.07 kg/m 3 (W1), 0.82kg/m 3 (W2) and 0.71 kg/m 3 (W3)”
Claim · model-written summary
Mean applied water was 4525, 4320 and 4290 m3/ha for treatments W1, W2 and W3 over three years.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- W1, W2 and W3e3
- Outcome
- quantity of water appliedtoe3
- Value
- 4525, 4320 and 4290 m 3 / hae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Fodder Barley (Hordium vulgare L.)”
e3“quantity of water appliedto the treatments W1, W2 and W3 were 4525, 4320 and 4290 m 3 / ha”
Claim · model-written summary
Forage yield increased with higher nitrogen fertilization level.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- level of N fertilizatione4
- Outcome
- forage yielde4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Fodder Barley (Hordium vulgare L.)”
e4“The forage yield increased with increase in level of N fertilization”
Claim · model-written summary
P fertilization had no significant effect on dry matter yield.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- P fertilizatione5
- Outcome
- dry matter yielde5
- Direction
- no_changeinferrede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Fodder Barley (Hordium vulgare L.)”
e5“The effect of P fertilization on drymatter yield was not significant”
Claim · model-written summary
The highest dry matter yield was associated with irrigation every 10 days combined with 192 kg urea/ha.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- combination of irrigation every 10 days and 192 kgurea /hae6
- Outcome
- dry matter yielde6
- Direction
- higheste6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Fodder Barley (Hordium vulgare L.)”
e6“The highest dry matter yield was associated with the combination of irrigation every 10 days and 192 kgurea /ha”
Claim · model-written summary
The higher dry matter yield in 2004/05 was attributed to lower day and night temperatures during tillering to milk stage.
- Taxon
- barleyHordeum vulgaret0
- Outcome
- dry matter yielde7
- Qualifier
- lower day/ nighttemperatures during tillering - milk stagee7
- Setting
- 2004/05e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Fodder Barley (Hordium vulgare L.)”
e7“The comparativelyhigher dry matter yield in 2004/05 was attributed to lower day/ nighttemperatures during tillering - milk stage”