Abstract
Nutrient deficiency, primarily nitrogen (N), is a major plant growth-limiting factor on northern Great Plains rangelands. Applications of 30 to 50 lb N/acre/year have commonly doubled forage production with an N-use efficiency of about 20 lb dry matter/lb N applied, or in grazing situations about 1 lb beef/lb N applied. Range fertilization can also increase water-use efficiency and improve forage quality and palatability. With applications of 50 lb N/acre/year or less, changes in species composition are gradual and can largely be controlled by timing of fertilizer applications and by season and intensity of grazing. Drastic changes in species composition are usually limited to applications greater than 150 lb N/acre/year.
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 7
Claim · model-written summary
Nitrogen applications of 30 to 50 lb N/acre/year commonly doubled forage production.
Not reportedTaxonComparator
Verbatim
e0“Applications of 30 to 50 lb N/acre/year have commonly doubled forage production with an N-use efficiency of about 20 lb dry matter/lb N applied, or in grazing situations about 1 lb beef/lb N applied.”
Claim · model-written summary
Nitrogen fertilization achieved about 20 lb dry matter/lb N applied nitrogen-use efficiency.
- Treatment
- 30 to 50 lb N/acre/yeare0
- Outcome
- N-use efficiencye0
- Value
- about 20 lb dry matter/lb N appliede0
Not reportedTaxonDirection
Verbatim
e0“Applications of 30 to 50 lb N/acre/year have commonly doubled forage production with an N-use efficiency of about 20 lb dry matter/lb N applied, or in grazing situations about 1 lb beef/lb N applied.”
Claim · model-written summary
Grazing situations yielded about 1 lb beef/lb N applied.
Not reportedTaxonDirection
Verbatim
e0“Applications of 30 to 50 lb N/acre/year have commonly doubled forage production with an N-use efficiency of about 20 lb dry matter/lb N applied, or in grazing situations about 1 lb beef/lb N applied.”
Claim · model-written summary
Range fertilization can increase water-use efficiency and improve forage quality and palatability.
- Treatment
- Range fertilizatione0
- Outcome
- water-use efficiency and improve forage quality and palatabilitye0
- Direction
- increasee0
- Qualifier
- cane0
Not reportedTaxonComparator
Verbatim
e0“Range fertilization can also increase water-use efficiency and improve forage quality and palatability.”
Claim · model-written summary
Species composition changes are gradual at nitrogen applications of 50 lb N/acre/year or less.
Not reportedTaxonComparatorDirection
Verbatim
e0“With applications of 50 lb N/acre/year or less, changes in species composition are gradual and can largely be controlled by timing of fertilizer applications and by season and intensity of grazing.”
Claim · model-written summary
Fertilizer timing and grazing season and intensity can largely control species composition changes.
- Outcome
- timing of fertilizer applications and by season and intensity of grazinge0
- Qualifier
- 50 lb N/acre/year or lesse0
Not reportedTaxon
Verbatim
e0“With applications of 50 lb N/acre/year or less, changes in species composition are gradual and can largely be controlled by timing of fertilizer applications and by season and intensity of grazing.”
Claim · model-written summary
Drastic species composition changes are usually confined to nitrogen applications greater than 150 lb N/acre/year.
- Treatment
- greater than 150 lb N/acre/yeare0
- Outcome
- Drastic changes in species compositione0
- Qualifier
- usuallye0
Not reportedTaxonComparatorDirection
Verbatim
e0“Drastic changes in species composition are usually limited to applications greater than 150 lb N/acre/year.”