Abstract
Investigations on the potential beneficial effect of humic substances on crop plant cultivation under extremely diverse soil and climatic conditions is of global character, thereby knowledge obtained on the basis of local investigations are of great importance world-wide. The aim of the research was to evaluate the effect of different application methods (seed tuber treatment and foliar application) of commercially-produced peat and vermicompost extracts on nutrient uptake in tubers and yield of potato (Solanum tuberosum L.) using field experiments in organic farming system with potato variety ‘Borodjanskij Rozovij’. The tested extracts from the organic products included: peat extract (K45) and vermicompost extract (B45) obtained at +45°C by cavitation. The investigation was carried out at Stende Research Centre (Institute of Agro-resources and Economics) from 2011 to 2012. The chemical composition (N, P, K, Ca, Mg, S, Fe, Mn, Zn, Cu, Mo, B) of potato tubers was determined. The application of organic extract from vermicompost had a stimulating effect on mineral nutrient as N, P, K, Mg, and S accumulation in potato tubers, but 50% of cases showed reduction in Ca and Cu content that could influence the storage of tubers. The use of peat extract was significantly effective when the tubers were treated before planting. On average, tuber treatment and foliar spray with organic extracts contributed to 10% of tuber yield increase.
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Claims 6
Claim · model-written summary
Vermicompost extract stimulated N, P, and K accumulation in potato tubers.
- Taxon
- potato
Solanum tuberosume0 - Organ / stage
- tuberse0
- Treatment
- organic extract from vermicomposte0
- Outcome
- N, P, Ke0
- Direction
- stimulatinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of organic extract from vermicompost had a stimulating effect on mineral nutrient as N, P, K, Mg, and S accumulation in potato tubers”
Claim · model-written summary
Vermicompost extract stimulated Mg and S accumulation in potato tubers.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- tuberse0
- Treatment
- organic extract from vermicomposte0
- Outcome
- Mg, and S accumulatione0
- Direction
- stimulatinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of organic extract from vermicompost had a stimulating effect on mineral nutrient as N, P, K, Mg, and S accumulation in potato tubers”
Claim · model-written summary
Vermicompost extract reduced Ca and Cu content in half of cases.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- organic extract from vermicomposte0
- Outcome
- Ca and Cu contente0
- Direction
- reductione0
- Value
- 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of organic extract from vermicompost had a stimulating effect on mineral nutrient as N, P, K, Mg, and S accumulation in potato tubers, but 50% of cases showed reduction in Ca and Cu content that could influence the storage of tubers”
Claim · model-written summary
Peat extract was significantly effective when tubers were treated before planting.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- tuberse0
- Treatment
- peat extracte0
- Outcome
- significantly effectivee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of peat extract was significantly effective when the tubers were treated before planting”
t0“potato”
Claim · model-written summary
Tuber treatment with organic extracts contributed to a mean 10% yield increase.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- tuber treatmente0
- Outcome
- tuber yielde0
- Direction
- increasee0
- Value
- 10%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On average, tuber treatment and foliar spray with organic extracts contributed to 10% of tuber yield increase”
t0“potato”
Claim · model-written summary
Foliar spray with organic extracts contributed to a mean 10% yield increase.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- foliar spray with organic extractse0
- Outcome
- tuber yielde0
- Direction
- increasee0
- Value
- 10%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On average, tuber treatment and foliar spray with organic extracts contributed to 10% of tuber yield increase”
t0“potato”
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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.