Abstract
All the crops require larger amounts of macronutrients for sustainable production. In view of this context, a present investigation was conducted during 2018–2019 at farmer's field, Namakkal, Tamil Nadu, India to study the effect of potassium on growth, yield and nutrient uptake of groundnut in cv. TMV 13. The farm is located at 11006’00’’ N latitude and 78004’11’’ E longitude. The experiment was laid out in randomized block design with three replications and nine treatments. The treatments were Absolute control, RDF (NP alone), RDF (NP alone) + 25 kg K2O/ha, RDF (NP alone) + 50 kg K2O/ha, RDF (NP alone) + 75 kg K2O/ha, RDF (NP alone) + 100 kg K2O/ha, RDF (NP alone) + 125 kg K2O/ha, RDF (NP alone) + 150 kg K2O/ha, RDF (NP alone) + 175 kg K2O/ha. The results of the field experiment revealed that application of potassium significantly increased the growth, yield and nutrient uptake of groundnut. Growth attributes, namely, plant height (18.2, 42.4 and 55.2 cm at FS, PFS and HS, respectively), leaf area index (1.58, 3.31 and 3.03 at FS, PFS and HS respectively), dry matter production (2746, 4449 and 5906 kg/ha at FS, PFS and HS respectively), total chlorophyll content (1.83 and 2.29 mg/ha at FS and PFS, respectively) and yield attributes, namely, pod yield (2558 kg/ha), haulm yield (3348 kg/ha), shelling percentage (75.2%), kernel yield (1923 kg/ha) and test weight (44.5 g) were found to be maximum in application of RDF (NP alone) + 100 kg K2O/ha. The treatment also recorded the maximum of total nitrogen uptake (84. 3 kg/ha), phosphorus uptake (24.7 kg/ha) and potassium uptake (103.6 kg/ha). However, the treatment of RDF (NP alone) + 100 kg K2O/ha was on par with the treatment of RDF (NP alone) + 125 kg K2O/ha. The least values of growth, yield and nutrient uptake were recorded in absolute control. In post-harvest soil, the maximum value of available nitrogen content (179.2 kg/ha) and phosphorus content (26.7 kg/ha) were recorded with application of RDF (NP alone) and the maximum potassium content (275.2 kg/ha) was recorded with application of RDF (NP alone) + 175 kg K2O/ha. From the results, the present experiment concluded that the excess levels of potassium application decreased the growth, yield attributes and nutrient uptake of groundnut. The application of potassium as 100 kg K2O/ha enhanced the better yield and nutrient uptake of groundnut.
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Claims 20
Claim · model-written summary
Potassium application significantly increased groundnut growth, yield and nutrient uptake.
- Taxon
- groundnut
Arachis hypogaeae0 - Treatment
- application of potassiume0
- Outcome
- growth, yield and nutrient uptakee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of potassium significantly increased the growth, yield and nutrient uptake of groundnut”
Claim · model-written summary
At RDF plus 100 kg K2O/ha, groundnut plant height was maximal at 18.2, 42.4 and 55.2 cm across the stated stages.
- Taxon
- groundnutArachis hypogaeat0
- Material
- TMV 13t0
- Treatment
- application of RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- plant heighte0
- Direction
- maximume1
- Value
- 18.2, 42.4 and 55.2 cme0
- Qualifier
- at FS, PFS and HSe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height (18.2, 42.4 and 55.2 cm at FS, PFS and HS, respectively)”
e1“were found to be maximum in application of RDF (NP alone) + 100 kg K2O/ha”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
At RDF plus 100 kg K2O/ha, groundnut leaf area index was maximal at 1.58, 3.31 and 3.03 across the stated stages.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- application of RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- leaf area indexe0
- Direction
- maximume1
- Value
- 1.58, 3.31 and 3.03e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf area index (1.58, 3.31 and 3.03 at FS, PFS and HS respectively)”
e1“were found to be maximum in application of RDF (NP alone) + 100 kg K2O/ha”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
At RDF plus 100 kg K2O/ha, groundnut dry matter production was maximal at 2746, 4449 and 5906 kg/ha across the stated stages.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- application of RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- dry matter productione0
- Direction
- maximume1
- Value
- 2746, 4449 and 5906 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry matter production (2746, 4449 and 5906 kg/ha at FS, PFS and HS respectively)”
e1“were found to be maximum in application of RDF (NP alone) + 100 kg K2O/ha”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
At RDF plus 100 kg K2O/ha, groundnut total chlorophyll content was maximal at 1.83 and 2.29 mg/ha.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- application of RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- total chlorophyll contente0
- Direction
- maximume1
- Value
- 1.83 and 2.29 mg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total chlorophyll content (1.83 and 2.29 mg/ha at FS and PFS, respectively)”
e1“were found to be maximum in application of RDF (NP alone) + 100 kg K2O/ha”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
Groundnut pod yield reached a maximum of 2558 kg/ha at RDF plus 100 kg K2O/ha.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- application of RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- pod yielde0
- Direction
- maximume1
- Value
- 2558 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pod yield (2558 kg/ha)”
e1“were found to be maximum in application of RDF (NP alone) + 100 kg K2O/ha”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
Groundnut haulm yield reached a maximum of 3348 kg/ha at RDF plus 100 kg K2O/ha.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- application of RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- haulm yielde0
- Direction
- maximume1
- Value
- 3348 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“haulm yield (3348 kg/ha)”
e1“were found to be maximum in application of RDF (NP alone) + 100 kg K2O/ha”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
Groundnut shelling percentage reached a maximum of 75.2% at RDF plus 100 kg K2O/ha.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- application of RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- shelling percentagee0
- Direction
- maximume1
- Value
- 75.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shelling percentage (75.2%)”
e1“were found to be maximum in application of RDF (NP alone) + 100 kg K2O/ha”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
Groundnut kernel yield reached a maximum of 1923 kg/ha at RDF plus 100 kg K2O/ha.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- application of RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- kernel yielde0
- Direction
- maximume1
- Value
- 1923 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“kernel yield (1923 kg/ha)”
e1“were found to be maximum in application of RDF (NP alone) + 100 kg K2O/ha”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
Groundnut test weight reached a maximum of 44.5 g at RDF plus 100 kg K2O/ha.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- application of RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- test weighte0
- Direction
- maximume1
- Value
- 44.5 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“test weight (44.5 g)”
e1“were found to be maximum in application of RDF (NP alone) + 100 kg K2O/ha”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
Groundnut total nitrogen uptake reached a maximum of 84. 3 kg/ha under the 100 kg K2O/ha treatment.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- total nitrogen uptakee0
- Direction
- maximume0
- Value
- 84. 3 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment also recorded the maximum of total nitrogen uptake (84. 3 kg/ha)”
e1“RDF (NP alone) + 100 kg K2O/ha. The treatment also recorded”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
Groundnut phosphorus uptake reached a maximum of 24.7 kg/ha under the 100 kg K2O/ha treatment.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- phosphorus uptakee0
- Direction
- maximume0
- Value
- 24.7 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum of total nitrogen uptake (84. 3 kg/ha), phosphorus uptake (24.7 kg/ha)”
e1“RDF (NP alone) + 100 kg K2O/ha. The treatment also recorded”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
Groundnut potassium uptake reached a maximum of 103.6 kg/ha under the 100 kg K2O/ha treatment.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- RDF (NP alone) + 100 kg K2O/hae1
- Outcome
- potassium uptakee0
- Direction
- maximume0
- Value
- 103.6 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum of total nitrogen uptake (84. 3 kg/ha), phosphorus uptake (24.7 kg/ha) and potassium uptake (103.6 kg/ha)”
e1“RDF (NP alone) + 100 kg K2O/ha. The treatment also recorded”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
The 100 kg K2O/ha treatment was on par with the 125 kg K2O/ha treatment for the reported groundnut results.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- RDF (NP alone) + 100 kg K2O/hae0
- Outcome
- on pare0
- Direction
- on pare0
- Comparator
- RDF (NP alone) + 125 kg K2O/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment of RDF (NP alone) + 100 kg K2O/ha was on par with the treatment of RDF (NP alone) + 125 kg K2O/ha”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
The absolute control had the lowest groundnut growth, yield and nutrient uptake.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- absolute controle0
- Outcome
- growth, yield and nutrient uptakee0
- Direction
- leaste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The least values of growth, yield and nutrient uptake were recorded in absolute control”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
Postharvest soil available nitrogen reached 179.2 kg/ha under RDF (NP alone).
- Treatment
- application of RDF (NP alone)e0
- Outcome
- available nitrogen contente0
- Direction
- maximume0
- Value
- 179.2 kg/hae0
Not reportedTaxon
Verbatim
e0“In post-harvest soil, the maximum value of available nitrogen content (179.2 kg/ha) and phosphorus content (26.7 kg/ha) were recorded with application of RDF (NP alone)”
t0“groundnut (Arachis hypogaea) cv. TMV 13”
Claim · model-written summary
Postharvest soil phosphorus content reached 26.7 kg/ha under RDF (NP alone).
- Treatment
- application of RDF (NP alone)e0
- Outcome
- phosphorus contente0
- Direction
- maximume0
- Value
- 26.7 kg/hae0
Not reportedTaxon
Verbatim
e0“In post-harvest soil, the maximum value of available nitrogen content (179.2 kg/ha) and phosphorus content (26.7 kg/ha) were recorded with application of RDF (NP alone)”
Claim · model-written summary
Postharvest soil potassium content reached 275.2 kg/ha under RDF plus 175 kg K2O/ha.
- Treatment
- application of RDF (NP alone) + 175 kg K2O/hae0
- Outcome
- potassium contente0
- Direction
- maximume0
- Value
- 275.2 kg/hae0
Not reportedTaxon
Verbatim
e0“the maximum potassium content (275.2 kg/ha) was recorded with application of RDF (NP alone) + 175 kg K2O/ha”
Claim · model-written summary
Excess potassium application decreased groundnut growth, yield attributes and nutrient uptake.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- excess levels of potassium applicatione0
- Outcome
- growth, yield attributes and nutrient uptakee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excess levels of potassium application decreased the growth, yield attributes and nutrient uptake of groundnut”
Claim · model-written summary
The authors conclude that 100 kg K2O/ha improves groundnut yield and nutrient uptake.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- application of potassium as 100 kg K2O/hae0
- Outcome
- better yield and nutrient uptakee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of potassium as 100 kg K2O/ha enhanced the better yield and nutrient uptake of groundnut”
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See all 153 papers →8 of 15 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.