Abstract
Abstract Cherney, D.J.R., Cherney, J.H. and Siciliano-Jones, J. 1995. Alfalfa composition and in sacco fiber and protein disappearance as influenced by nitrogen application. J. Appl. Anim. Res. 8:105–119. Nitrogen (0, 112, 224, 336 kg of N as ammonium nitrate/ha) was applied to field plots of established alfalfa (Medicago sativa L.) to evaluate its effect on forage quality. Two first-growth cuttings (bud stage; 1 wk apart) were harvested beginning in May. Alfalfa fertilized with 336 kg N/ha had slightly lower neutral detergent fiber (NDF) than alfalfa fertilized with 0 kg N/ha (32% vs. 33% NDF). Nitrate, crude protein, soluble crude protein (dry matter basis) and crude protein solubility increased with increased N fertilization. As expected, the later cutting of alfalfa was higher in NDF and lignin and lower in nitrate and crude protein (CP). In another study, alfalfa was ruminally incubated in nylon bags to determine the influence of N fertilization, harvest date and level of fat in cow diet on dry matter disappearance and N disappearance. High fat (7%) resulted in lower dry matter disappearance than a low fat (3%) diet at 24 h (79.4% vs. 84.1%). Harvest date did not influence measured parameters. Crude protein solubility and nitrates both increased with increased N application. This increase in CP increased N disappearance in the rumen, as measured by a second in sacco study. This could result in increased problems with utilization of alfalfa nitrogen by ruminants. The effect of N application on forage quality was negligible after the first harvest, however, suggesting that moderate manure application to established alfalfa fields may be an acceptable practice from a forage quality standpoint.
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 9
Claim · model-written summary
At 336 kg N/ha, alfalfa had slightly lower NDF than at 0 kg N/ha, 32% versus 33%.
- Taxon
- Alfalfa
Medicago sativae0 - Treatment
- 336 kg N/hae0
- Outcome
- neutral detergent fiber (NDF)e0
- Direction
- slightly lowere0
- Value
- 32%e0
- Qualifier
- 33% NDFe0
- Comparator
- 0 kg N/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfa fertilized with 336 kg N/ha had slightly lower neutral detergent fiber (NDF) than alfalfa fertilized with 0 kg N/ha (32% vs. 33% NDF).”
Claim · model-written summary
Nitrate, crude protein and soluble crude protein increased with N fertilization.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- N fertilizatione0
- Outcome
- Nitrate, crude protein, soluble crude proteine0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrate, crude protein, soluble crude protein (dry matter basis) and crude protein solubility increased with increased N fertilization.”
t0“Alfalfa”
Claim · model-written summary
Crude protein solubility increased with N fertilization.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- N fertilizatione0
- Outcome
- crude protein solubilitye0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crude protein solubility increased with increased N fertilization”
t0“Alfalfa”
Claim · model-written summary
The later alfalfa cutting had higher NDF and lignin.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- later cuttinge0
- Outcome
- NDF and lignine0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the later cutting of alfalfa was higher in NDF and lignin and lower in nitrate and crude protein (CP)”
Claim · model-written summary
The later alfalfa cutting had lower nitrate and crude protein.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- later cuttinge0
- Outcome
- nitrate and crude proteine0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the later cutting of alfalfa was higher in NDF and lignin and lower in nitrate and crude protein (CP)”
Claim · model-written summary
A 7% fat cow diet lowered alfalfa dry matter disappearance at 24 h relative to 3% fat, 79.4% versus 84.1%.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- High fat (7%)e0
- Outcome
- dry matter disappearancee0
- Direction
- lowere0
- Value
- 79.4%e0
- Qualifier
- at 24 h (79.4% vs. 84.1%)e0
- Comparator
- low fat (3%) diete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High fat (7%) resulted in lower dry matter disappearance than a low fat (3%) diet at 24 h (79.4% vs. 84.1%).”
t0“Alfalfa”
Claim · model-written summary
Harvest date did not influence measured ruminal disappearance parameters.
- Taxon
- AlfalfaMedicago sativat0
- Outcome
- measured parameterse0
- Direction
- did not influencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvest date did not influence measured parameters.”
t0“Alfalfa”
Claim · model-written summary
Increased crude protein with N application increased ruminal N disappearance.
- Taxon
- AlfalfaMedicago sativat0
- Outcome
- N disappearance in the rumene0
- Direction
- increasede0
- Qualifier
- increase in CPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This increase in CP increased N disappearance in the rumen, as measured by a second in sacco study.”
t0“Alfalfa”
Claim · model-written summary
The authors suggest moderate manure application may be acceptable for established alfalfa forage quality.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- moderate manure applicatione0
- Outcome
- acceptable practice from a forage quality standpointe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moderate manure application to established alfalfa fields may be an acceptable practice from a forage quality standpoint.”
The same questions in other papers
nitrogen · quality: grain · Medicago sativa (alfalfa)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
2 papers more in this group
See all 6 papers →pruning · quality: grain · Medicago sativa (alfalfa)Positive and negative results
2 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →pruning · quality: protein · Medicago sativa (alfalfa)Positive and negative results
10 papers in the same direction as this paper · 11 in the opposite direction
- positive
- positive
- positive
18 papers more in this group
See all 22 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.