Abstract
Results of 5 fertilizer trials at 4 localities to determine nutrient deficiencies and assess fertilizer requirements are summarized. Significant grain yield responses in maize were obtained only to N and, in one locality, to P. Zn unavailability may occur sporadically on irrigated country. K, Mn, B, Mo and Fe had no effects on foliage or grain yields. In P-deficient areas, N and P are required in combination to secure highest yields.
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
Nitrogen significantly increased maize grain yield.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant grain yield responses in maize were obtained only to N”
t0“irrigated maize on some black earth soils, Darling Downs, Queensland”
Claim · model-written summary
Phosphorus significantly affected maize grain yield in one locality.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and, in one locality, to P”
e1“Significant grain yield responses in maize were obtained only to N and, in one locality, to P”
Claim · model-written summary
Zinc availability may be sporadically low on irrigated land.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn unavailability may occur sporadically on irrigated country”
t0“irrigated maize”
Claim · model-written summary
K, Mn, B, Mo and Fe had no effect on maize foliage or grain yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K, Mn, B, Mo and Fe had no effects on foliage or grain yields”
t0“irrigated maize”
Claim · model-written summary
The authors recommend combined N and P in phosphorus-deficient areas for highest yield.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In P-deficient areas, N and P are required in combination to secure highest yields”
t0“irrigated maize”
The same questions in other papers
iron atom · yield · Zea mays (maize)Results differ
10 papers in the same direction as this paper · 62 in the opposite direction
- positive
- positive
- positive
69 papers more in this group
See all 73 papers →molybdenum atom · yield · Zea mays (maize)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 →manganese atom · yield · Zea mays (maize)Positive and negative results
5 papers in the same direction as this paper · 22 in the opposite direction
- positive
- positive
- positive
24 papers more in this group
See all 28 papers →nitrogen · yield · Zea mays (maize)Positive and negative results
1,905 papers in the same direction as this paper · 234 in the opposite direction · 45 reporting no difference from an alternative
- negative
- no effect
- negative
2,181 papers more in this group
See all 2,185 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.