Abstract
Field experiments were conducted during 2006-07 to study the effect of planting time and potassium levels on productivity, potassium uptake and potassium-use efficiency by promising soybean (Glycine max L. Merr.) genotypes under Malwa plateau of central India. Timely planting of soybean (last fortnight of June) showed superiority over the late planting with respect to all the parameters evaluated. Timely planting of soybean gave higher yield (20.28%) and potassium uptake (24.62%) over late planting. Potassium recovery, physiological and internal-use efficiency were higher in late planted soybean compared with the timely planting. The significantly highest net returns was recorded with 49.8 kg K/ha, while the maximum B:C ratio was associated with 33.2 kg K/ha. Potassium uptake increased concomitantly with the levels of potassium. Potassium-use efficiencies (agronomic, recovery efficiency, physiological efficiency and internal K use efficiency) decreased as the levels of potassium increased. All the 3 soybean genotypes were found to be identical in terms of productivity potential while soybean genotypes differed significantly among themselves with regards to potassium-use efficiencies. The economic optimum level of potassium for planting time and soybean genotypes ranged from 37 to 39 kg/ha. Variety like 'NRC 7' has immense utility when planting is delayed.
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 11
Claim · model-written summary
Timely planting increased yield by 20.28% over late planting.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Timely plantinge0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 20.28%e0
- Comparator
- late plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Timely planting of soybean gave higher yield (20.28%) and potassium uptake (24.62%) over late planting”
Claim · model-written summary
Timely planting increased potassium uptake by 24.62% over late planting.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Timely plantinge0
- Outcome
- potassium uptakee0
- Direction
- highere0
- Value
- 24.62%e0
- Comparator
- late plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Timely planting of soybean gave higher yield (20.28%) and potassium uptake (24.62%) over late planting”
Claim · model-written summary
Late planting had higher potassium recovery, physiological and internal-use efficiency.
- Taxon
- soybeanGlycine maxe0
- Treatment
- late plantede0
- Outcome
- Potassium recovery, physiological and internal-use efficiencye0
- Direction
- highere0
- Comparator
- timely plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium recovery, physiological and internal-use efficiency were higher in late planted soybean compared with the timely planting”
Claim · model-written summary
The highest net returns occurred at 49.8 kg K/ha.
- Taxon
- soybeanGlycine maxt0
- Treatment
- 49.8 kg K/hae0
- Outcome
- net returnse0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly highest net returns was recorded with 49.8 kg K/ha”
t0“soybean”
Claim · model-written summary
The maximum benefit to cost ratio occurred at 33.2 kg K/ha.
- Taxon
- soybeanGlycine maxt0
- Treatment
- 33.2 kg K/hae0
- Outcome
- B:C ratioe0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum B:C ratio was associated with 33.2 kg K/ha”
t0“soybean”
Claim · model-written summary
Potassium uptake increased with potassium level.
- Taxon
- soybeanGlycine maxt0
- Treatment
- levels of potassiume0
- Outcome
- Potassium uptakee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium uptake increased concomitantly with the levels of potassium”
t0“soybean”
Claim · model-written summary
Agronomic, recovery, physiological and internal potassium use efficiencies decreased as potassium level increased.
- Taxon
- soybeanGlycine maxt0
- Treatment
- levels of potassiume0
- Outcome
- Potassium-use efficiencies (agronomic, recovery efficiency, physiological efficiency and internal K use efficiency)e0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium-use efficiencies (agronomic, recovery efficiency, physiological efficiency and internal K use efficiency) decreased as the levels of potassium increased”
t0“soybean”
Claim · model-written summary
Three soybean genotypes had identical productivity potential.
- Taxon
- soybeanGlycine maxe0
- Outcome
- productivity potentiale0
- Direction
- identicale0
- Value
- 3 soybean genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the 3 soybean genotypes were found to be identical in terms of productivity potential”
Claim · model-written summary
Soybean genotypes differed significantly in potassium use efficiency.
- Taxon
- soybeanGlycine maxe0
- Outcome
- potassium-use efficienciese0
- Direction
- differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean genotypes differed significantly among themselves with regards to potassium-use efficiencies”
Claim · model-written summary
The economic optimum potassium level ranged from 37 to 39 kg/ha.
- Taxon
- soybeanGlycine maxe0
- Outcome
- economic optimum level of potassiume0
- Value
- 37 to 39 kg/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“economic optimum level of potassium for planting time and soybean genotypes ranged from 37 to 39 kg/ha”
t0“soybean”
Claim · model-written summary
NRC 7 was considered useful when planting is delayed.
- Taxon
- soybeanGlycine maxt0
- Material
- NRC 7e0
- Outcome
- immense utility when planting is delayede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Variety like 'NRC 7' has immense utility when planting is delayed”
t0“soybean”
The same questions in other papers
sowing time · nutrient: content · Glycine max (soybean)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
3 papers more in this group
See all 7 papers →sowing time · yield · Glycine max (soybean)Positive and negative results
114 papers in the same direction as this paper · 89 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- negative
203 papers more in this group
See all 207 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.