Abstract
Summary The results from a 3 3 and two 2 5 factorial fertilizer experiments are presented. N-deficiency limited female flower production, rate of bunch production, and yield; K-deficiency reduced the setting of flowers and yield; nuts were larger where P was applied. The results are interpreted in the light of foliar analyses, and the concept of independant critical levels of the major nutrients is challenged. It is suggested that yield is related to the ratios between foliar N and K, but that the K level should in turn be interpreted in the light of a balance between the monovalent and divalent cations. Female flower production and setting can be used as a ready field guide to nutrient requirements.
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Claims 8
Claim · model-written summary
N deficiency limited coconut female flower production.
Not reportedComparator
Verbatim
e0“N-deficiency limited female flower production, rate of bunch production, and yield”
t0“Coconuts”
Claim · model-written summary
N deficiency limited coconut bunch production rate.
Not reportedComparator
Verbatim
e0“N-deficiency limited female flower production, rate of bunch production, and yield”
t0“Coconuts”
Claim · model-written summary
N deficiency limited coconut yield.
Not reportedComparator
Verbatim
e0“N-deficiency limited female flower production, rate of bunch production, and yield”
t0“Coconuts”
Claim · model-written summary
K deficiency reduced coconut flower setting.
Not reportedComparator
Verbatim
e0“K-deficiency reduced the setting of flowers and yield”
t0“Coconuts”
Claim · model-written summary
K deficiency reduced coconut yield.
Not reportedComparator
Verbatim
e0“K-deficiency reduced the setting of flowers and yield”
t0“Coconuts”
Claim · model-written summary
Coconut nuts were larger where P was applied.
Not reportedComparator
Verbatim
e0“nuts were larger where P was applied”
t0“Coconuts”
Claim · model-written summary
Coconut yield was proposed to relate to foliar N:K ratios.
Not reportedDirection
Verbatim
e0“yield is related to the ratios between foliar N and K”
t0“Coconuts”
Claim · model-written summary
Female flower production and setting were recommended as field guides to coconut nutrient requirements.
Verbatim
e0“Female flower production and setting can be used as a ready field guide to nutrient requirements”
t0“Coconuts”
The same questions in other papers
nitrogen · yield · Cocos nucifera (coconut palm)Results agree
1 paper in the same direction as this paper
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
potassium · yield · Cocos nucifera (coconut palm)Results agree
2 papers in the same direction as this paper
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
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.