Abstract
SUMMARY The traditional management of cattle manure in a cropping system in the savanna zone of central Nigeria is discussed in conjunction with the agronomic benefits and problems of manure use. Nitrogen and phosphorus contents of the manure varied seasonally. On-farm trials showed that maize grain yields were about 1 t ha −1 more and weed growth 90% greater in manured than in non-manured areas. It is important to reduce the competition between crops and weeds if grain crops are to obtain the full benefit of manure in such cropping systems.
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 4
Claim · model-written summary
Manure nitrogen and phosphorus contents varied seasonally.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen and phosphorus contents of the manure varied seasonally.”
e1“maize grain yields were about 1 t ha −1 more and weed growth 90% greater in manured than in non-manured areas”
Claim · model-written summary
Manured areas had about 1 t ha −1 more maize grain yield than non-manured areas.
- Treatment
- manurede0
- Outcome
- maize grain yieldse0
- Direction
- moree0
- Value
- 1 t ha −1e0
- Comparator
- non-manured arease0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize grain yields were about 1 t ha −1 more and weed growth 90% greater in manured than in non-manured areas”
Claim · model-written summary
Weed growth was 90% greater in manured areas than non-manured areas.
- Treatment
- manurede0
- Interactor
- weede0weed
- Outcome
- weed growthe0
- Direction
- greatere0
- Value
- 90%e0
- Comparator
- non-manured arease0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize grain yields were about 1 t ha −1 more and weed growth 90% greater in manured than in non-manured areas”
Claim · model-written summary
The authors recommend reducing crop–weed competition to gain the full grain-crop benefit of manure.
Verbatim
e0“It is important to reduce the competition between crops and weeds if grain crops are to obtain the full benefit of manure in such cropping systems.”
The same questions in other papers
fertilization · weed · Zea mays (maize)Positive and negative results
27 papers in the same direction as this paper · 34 in the opposite direction
- positive
- positive
- positive
58 papers more in this group
See all 62 papers →fertilization · yield · Zea mays (maize)Positive and negative results
3,484 papers in the same direction as this paper · 338 in the opposite direction · 85 reporting no difference from an alternative
- negative
- no effect
- negative
3,904 papers more in this group
See all 3,908 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.