Abstract
Siam weed growing in any locations can be used for developing organic agriculture in Indonesia. The research was to find the quantitative and qualitative potential of siam weed as compost material for organic shallot cultivation. This study was descriptive-quantitative research using survey method done in four regencies in Yogyakarta Special Province and laboratory analysis. Purposive random sampling was used in survey method to determine the samples by applying random sampling and nested design. Laboratory analysis was to know nutrient content of siam weed. Shallot was planted using siam weed compost of 10 and 20 ton ha-1, inorganic fertilizer of 500 kg NPK Mutiara 16-16-16 ha-1 and the control. Siam weed was potential for developing organic shallot in Indonesia. Siam weed produced fresh biomass of 80 ton ha-1 with the population density of 24-37 individual m-2 and spread over almost all locations in Yogyakarta Special Province. Siam weed also contained higher nutrients of 2.56% N, 0.38% P, and 2.41% K with C/N ratio of 19.52 under the critical point of 30 so that easy to mineralized. The use of siam weed compost stimulated leaf number on shallot at 7 weeks after planting compared to the use of inorganic fertilizer and the control, but gave no significant yield of 19.71, 15.56, and 18.92 ton ha-1 of bulb, respectively.Keywords: organic fertilizer, development, nutrient
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Claims 8
Claim · model-written summary
Siam weed biomass was 80 ton ha-1 with density 24-37 individuals m-2.
Verbatim
e0“Siam weed produced fresh biomass of 80 ton ha-1 with the population density of 24-37 individual m-2”
Claim · model-written summary
Siam weed occurred across almost all locations in Yogyakarta Special Province.
Verbatim
e0“spread over almost all locations in Yogyakarta Special Province”
t0“Gulma Siam”
Claim · model-written summary
Siam weed contained 2.56% N.
Verbatim
e0“Siam weed also contained higher nutrients of 2.56% N”
Claim · model-written summary
Siam weed contained 0.38% P.
Verbatim
e0“Siam weed also contained higher nutrients of 2.56% N, 0.38% P”
Claim · model-written summary
Siam weed contained 2.41% K.
Verbatim
e0“Siam weed also contained higher nutrients of 2.56% N, 0.38% P, and 2.41% K”
Claim · model-written summary
Siam weed C/N ratio was 19.52.
Verbatim
e0“Siam weed also contained higher nutrients of 2.56% N, 0.38% P, and 2.41% K with C/N ratio of 19.52”
Claim · model-written summary
Siam weed compost raised shallot leaf number relative to inorganic fertilizer and control.
- Taxon
- shallot
Allium cepa var. aggregatume0 - Treatment
- siam weed composte0
- Outcome
- leaf numbere0
- Direction
- stimulatede0
- Comparator
- inorganic fertilizer and the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of siam weed compost stimulated leaf number on shallot at 7 weeks after planting compared to the use of inorganic fertilizer and the control”
Claim · model-written summary
Shallot bulb yields did not differ significantly among compost, inorganic fertilizer and control.
Not reportedTreatmentComparator
Verbatim
e0“but gave no significant yield of 19.71, 15.56, and 18.92 ton ha-1 of bulb, respectively”
t0“Bawang Merah”
The same questions in other papers
fertilization · growth · Allium cepa (onion)Positive and negative results
250 papers in the same direction as this paper · 40 in the opposite direction · 3 reporting no difference from an alternative
- positive
- positive
- no effect
290 papers more in this group
See all 294 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.