Abstract
A pot experiment was conducted to compare the Importance of nitrogen and phosphorus fertilizers to seedling growth of four grasses on mulga soil. Two native species, Monachather paradoxa (mulga oats) and Digitaria ammophila (silky umbrella grass), and two exotic ones, Anthephora pubescens (wool grass) and Cenchrus ciliaris cv. Biloela (buffel grass), were tested. Digitaria and the two exotic grasses reacted similarly to applied phosphorus while Cenchrus utilized soil nitrogen more readily than the others. Phosphorus produced marked growth responses, increased the nitrogen and phosphorus contents of the plants, reduced the time between emergence and tillering and reduced root/shoot ratios. Nitrogen fertilizer produced no significant responses and actually retarded very early seedling growth. There were no nitrogen x phosphorus interactions.
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Claims 9
Claim · model-written summary
Digitaria and the two exotic grasses responded similarly to phosphorus.
DigitariaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Digitaria and the two exotic grasses reacted similarly to applied phosphorus”
Claim · model-written summary
Cenchrus used soil nitrogen more readily than the other grasses.
CenchrusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cenchrus utilized soil nitrogen more readily than the others”
Claim · model-written summary
Phosphorus markedly increased grass seedling growth.
Not reportedComparator
Verbatim
e0“Phosphorus produced marked growth responses”
t0“grass seedlings”
Claim · model-written summary
Phosphorus increased plant nitrogen and phosphorus content.
- Taxon
- grass seedlingst0
- Treatment
- Phosphoruse0
- Outcome
- nitrogen and phosphorus contents of the plantse0
- Direction
- increasede0
Not reportedComparator
Verbatim
t0“grass seedlings”
e0“increased the nitrogen and phosphorus contents of the plants”
Claim · model-written summary
Phosphorus shortened the interval between emergence and tillering.
- Taxon
- grass seedlingst0
- Treatment
- Phosphoruse0
- Outcome
- time between emergence and tilleringe0
- Direction
- reducede0
Not reportedComparator
Verbatim
t0“grass seedlings”
e0“Phosphorus produced marked growth responses, increased the nitrogen and phosphorus contents of the plants, reduced the time between emergence and tillering”
Claim · model-written summary
Phosphorus reduced root to shoot ratios.
Not reportedComparator
Verbatim
t0“grass seedlings”
e0“Phosphorus produced marked growth responses, increased the nitrogen and phosphorus contents of the plants, reduced the time between emergence and tillering and reduced root/shoot ratios”
Claim · model-written summary
Nitrogen fertilizer produced no significant response overall.
Not reportedComparatorDirection
Verbatim
t0“grass seedlings”
e0“Nitrogen fertilizer produced no significant responses”
Claim · model-written summary
Nitrogen fertilizer retarded very early seedling growth.
- Taxon
- grass seedlingst0
- Treatment
- Nitrogen fertilizere0
- Outcome
- very early seedling growthe0
- Direction
- retardede0
Not reportedComparator
Verbatim
t0“grass seedlings”
e0“Nitrogen fertilizer produced no significant responses and actually retarded very early seedling growth”
Claim · model-written summary
Nitrogen and phosphorus had no interaction.
Verbatim
t0“grass seedlings”
e0“There were no nitrogen x phosphorus interactions”