Abstract
A Field experiment was carried out at the Experimental Station Farm in Giza, Agricultural ResearchCenter, Egypt, during the two successive summer seasons of 2012 and 2013. The experiment was tostudy the effect of varying sources, rates of nitrogen fertilizers on fresh and dry forage yields of sudangrass,chemical constituents, nitrate and nitrite accumulation in plant using a split-plot design with three replicates .The main plots were assigned to nitrogen fertilizer sources (Ammonium nitrate NH4 NO3 and ammoniumsulphate (NH4)2 SO4.While, the sub-plots were occupied with rates of nitrogen fertilizer (50, 75, 100, and125 Kg N / fed).The results indicated that the fresh and dry forage yield ton/fed, nitrogen, crude protein,phosphorus, potassium, nitrite (NO2) and nitrate (NO3)contents were significantly decreased in the secondcutting as compared with the first one over both seasons. Using ammonium sulphate "(NH4)2 SO4" was betterthan using ammonium nitrate "NH4 NO3" as a source of nitrogen fertilizer over both cuttings and seasons.Fresh and dry forage yields of sudangrass were significantly increased as nitrogen rates increased from50 to 75 and 100 kg N/fed and significantly decreased due to increasing nitrogen rate from 100 to 125 kg N/fed over both seasons.It can be recommended that mineral fertilizing of sudangrass plants with 75100- kgN/fed is better to get suitable forage yields and reduce nitrate accumulation in plant.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Second cutting had lower fresh and dry forage yields and nutrient and nitrate contents than the first cutting.
- Taxon
- sudangrass
Sorghum ×drummondiit0 - Outcome
- fresh and dry forage yield ton/fed, nitrogen, crude protein,phosphorus, potassium, nitrite (NO2) and nitrate (NO3)contentse0
- Direction
- decreasede0
- Comparator
- the first onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicated that the fresh and dry forage yield ton/fed, nitrogen, crude protein,phosphorus, potassium, nitrite (NO2) and nitrate (NO3)contents were significantly decreased in the secondcutting as compared with the first one over both seasons.”
t0“Sudangrass”
Claim · model-written summary
Ammonium sulphate performed better than ammonium nitrate.
- Taxon
- sudangrassSorghum ×drummondiit0
- Treatment
- ammonium sulphate "(NH4)2 SO4"e0
- Outcome
- betterthane0
- Direction
- betterthane0
- Comparator
- ammonium nitrate "NH4 NO3"e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using ammonium sulphate "(NH4)2 SO4" was betterthan using ammonium nitrate "NH4 NO3" as a source of nitrogen fertilizer over both cuttings and seasons.”
t0“Sudangrass”
Claim · model-written summary
Fresh and dry forage yields increased as nitrogen rates rose from 50 to 75 and 100 kg N/fed.
- Taxon
- sudangrassSorghum ×drummondiie0
- Treatment
- 75 and 100 kg N/fede0
- Outcome
- Fresh and dry forage yieldse0
- Direction
- increasede0
- Comparator
- 50e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh and dry forage yields of sudangrass were significantly increased as nitrogen rates increased from50 to 75 and 100 kg N/fed”
Claim · model-written summary
Fresh and dry forage yields declined when nitrogen rate increased from 100 to 125 kg N/fed.
- Taxon
- sudangrassSorghum ×drummondiit0
- Treatment
- 125 kg N/fede0
- Outcome
- fresh and dry forage yielde1
- Direction
- decreasede0
- Comparator
- 100e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly decreased due to increasing nitrogen rate from 100 to 125 kg N/fed”
t0“Sudangrass”
e1“the fresh and dry forage yield ton/fed”
Claim · model-written summary
The authors recommend 75–100 kg N/fed for suitable sudangrass forage yield and reduced nitrate accumulation.
- Taxon
- sudangrassSorghum ×drummondiie0
- Treatment
- 75100- kgN/fede0
- Outcome
- suitable forage yields and reduce nitrate accumulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It can be recommended that mineral fertilizing of sudangrass plants with 75100- kgN/fed is better to get suitable forage yields and reduce nitrate accumulation in plant.”
The same questions in other papers
nitrogen · yield · Sorghum x drummondii (Sudan grass)Results differ
12 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
11 papers more in this group
See all 15 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.