Abstract
Extensive use of chemical fertilizer is leading to infertility of soil and various hazardous effect on the ecosystem. Using biofertilizer reduces these harmful effects. Many are commercially available, being a poor match to chemical fertilizer they are not used on a large scale. Near coastal regions seaweeds are used as biofertilizers. Recent studies show seaweeds have multiple growth regulators, macro and micronutrients, polysaccharides which are necessary for plant growth. The study is carried out to check the bioactivity of Seaweed liquid fertilizer (SLF) as a growth stimulant. Sargassum cinereum, Ulva rigida and Ahnfeltia plicata found on the Indian coastline were used. SLFs were prepared from each of three species in varying concentration (0.02%, 0.04%, 0.06%, 0.08% and 0.1% v/v) with water and Urea as control. The test plant selected was Vigna radiata. Agronomic characters like germination rate, shoot length, flowering and fruiting period of test plants were studied. Phyto-hormones from SLF were detected by thin-layer chromatography. Elemental analysis of micronutrients in SLF was carried by ICP-AES. Along with Chlorophyll and Protein estimation of grown plants were checked. SLF shelf life was studied using chemical and biological preservatives. The effect of 0.06% concentration of all SLFs showed enhancement in growth and phytochemicals in plants. Plants treated with SLF showed flowering earlier than control plants. Thus, using SLF bio-fertilizer can become an alternative method to reduce the use of harmful chemical fertilizers.
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Claims 3
Claim · model-written summary
A 0.06% concentration of all three seaweed liquid fertilizers enhanced plant growth and phytochemicals.
- Taxon
- Vigna radiata
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Vigna radiatae1 - Treatment
- 0.06% concentration of all SLFse0
- Outcome
- growth and phytochemicalse0
- Direction
- enhancemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The effect of 0.06% concentration of all SLFs showed enhancement in growth and phytochemicals in plants.”
e1“The test plant selected was Vigna radiata.”
Claim · model-written summary
Seaweed liquid fertilizer advanced flowering relative to control plants.
- Taxon
- Vigna radiataVigna radiatae1
- Treatment
- SLFe0
- Outcome
- floweringe0
- Direction
- earliere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants treated with SLF showed flowering earlier than control plants.”
e1“The test plant selected was Vigna radiata.”
Claim · model-written summary
The authors propose seaweed liquid fertilizer as an alternative to reduce chemical fertilizer use.
- Taxon
- Vigna radiataVigna radiatae1
- Outcome
- using SLF bio-fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thus, using SLF bio-fertilizer can become an alternative method to reduce the use of harmful chemical fertilizers.”
e1“The test plant selected was Vigna radiata.”
The same questions in other papers
fertilization · phenology · Vigna radiata (mung bean)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- 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.