Abstract
The study was planned to find out the effect of different fertilizers on the growth of coconut seedlings, availability of some nutrients and soil microbial activities with the aim of developing a fertilizer mixture that supports the plant growth with simultaneous improvement of soil health. Eight months old coconut seedlings of CRIC 65 cultivar was planted in large pots and kept inside a green house. Six treatments: control (T1), inorganic fertilizer (T2), BioGold® (T3), cattle manure (T4), Kochchikadebiofertilizer (T5) and compost (T6) were selected. Biweekly measurements of growth parameters, soil chemical parameters: pH, electrical conductivity, levels of K, P, Mg, and soil microbial parameters: biomass carbon and CO2 evolution were taken. The experiment design was a Complete Randomized with three replicates. The data were analyzed by analysis of variance (ANOVA) using the MINITAB statistical package. No significant differences (P<0.05) were observed in growth parameters, soil pH and EC throughout the research period in any of the treatments. The highest P level and lowest K level were observed in inorganic treatment after a six months period. Cattle manure contributed a high level of Mg to the soil. And hence possible to recommend cattle manure as a good source of Mg. Significantly improved microbial activity was observed in BioGold® and the compost treatments. This implies that organic fertilizers are more environmental friendly compared to inorganic fertilizers.Keywords: inorganic fertilizers, organic fertilizers, biofertilizers, soil nutrients, microbial activity, coconut
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Claims 9
Claim · model-written summary
Growth parameters did not differ significantly among fertilizer treatments.
Not reportedComparatorDirection
Verbatim
e0“No significant differences (P<0.05) were observed in growth parameters, soil pH and EC throughout the research period in any of the treatments.”
t0“COCONUT SEEDLINGS”
Claim · model-written summary
Soil pH and EC did not differ significantly among treatments.
Not reportedComparatorDirection
Verbatim
e0“No significant differences (P<0.05) were observed in growth parameters, soil pH and EC throughout the research period in any of the treatments.”
t0“COCONUT SEEDLINGS”
Claim · model-written summary
Inorganic fertilizer yielded the highest soil P level after six months.
- Taxon
- COCONUT SEEDLINGSt0
- Treatment
- inorganic treatmente0
- Outcome
- P levele0
- Direction
- higheste0
- Qualifier
- after a six months periode0
Not reportedComparator
Verbatim
e0“The highest P level and lowest K level were observed in inorganic treatment after a six months period.”
t0“COCONUT SEEDLINGS”
Claim · model-written summary
Inorganic fertilizer yielded the lowest soil K level after six months.
Not reportedComparator
Verbatim
e0“The highest P level and lowest K level were observed in inorganic treatment after a six months period.”
t0“COCONUT SEEDLINGS”
Claim · model-written summary
Cattle manure contributed a high soil Mg level.
Not reportedComparator
Verbatim
e0“Cattle manure contributed a high level of Mg to the soil.”
t0“COCONUT SEEDLINGS”
Claim · model-written summary
The authors recommend cattle manure as a Mg source.
Verbatim
e0“possible to recommend cattle manure as a good source of Mg”
t0“COCONUT SEEDLINGS”
Claim · model-written summary
BioGold improved soil microbial activity significantly.
Not reportedComparator
Verbatim
e0“Significantly improved microbial activity was observed in BioGold® and the compost treatments.”
t0“COCONUT SEEDLINGS”
Claim · model-written summary
Compost improved soil microbial activity significantly.
Not reportedComparator
Verbatim
e0“Significantly improved microbial activity was observed in BioGold® and the compost treatments.”
t0“COCONUT SEEDLINGS”
Claim · model-written summary
The authors interpreted organic fertilizers as more environmentally friendly than inorganic fertilizers.
Verbatim
e0“organic fertilizers are more environmental friendly compared to inorganic fertilizers”
t0“COCONUT SEEDLINGS”
The same questions in other papers
fertilization · nutrient: content · Cocos nucifera (coconut palm)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
fertilization · soil: biology · Cocos nucifera (coconut palm)Results agree
1 paper in the same direction as this paper
- 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.