Abstract
Abstract The solid fraction, according to many researches, is an effective organic fertilizer, the activity of which is at the level of mineral fertilizers and even exceeds their effectiveness, while the use of the liquid fraction does not always give positive results. In the article the optimal concentration of the liquid fraction in water solution for fertilization during cultivation of onion for chives in soil was determined. Sediment from biogas production was obtained at the thermophilic fermentation (50ºC) of cattle manure in the laboratory institution which operated at the periodical regime of loading. Fermentation lasted 25 days. Seven variants of plant feeding were assessed: clean water (control), mineral fertilizers (solution of ammonium nitrate in water in the concentration of 1:25), unsolved liquid biofuel fraction and mixture of liquid fraction from the postferment with water in concentrations of 1:10, 1:50, 1:100, 1:500. It was determined that the highest efficiency was observed in case of fertilization of plants with the mixture of liquid fraction from postferment with concentration of 1:500. Along with the increase of liquid fraction concentration and fertilization of plants with water solution of mineral fertilizers, onion productivity dropped slightly. Fertilization of plants with the liquid fraction from postferment resulted in fractional dying of plants and reduction of efficiency. The crop control of nitrogen content proved that in case of every day watering of onion with clean water and mixture of liquid fraction with water concentration of 1:100-1:500 did not exceed the maximum admissible concentration which is 800 mg·kg −1 . Thus, in case of onion cultivation for chives, taking into consideration the crop growth and low nitrogen content, it is recommended to use the mixture of liquid fraction with water of 1:500 concentration.
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Claims 6
Claim · model-written summary
A 1:500 dilution of postferment liquid fraction gave the highest onion fertilization efficiency.
- Taxon
- Onion for Chivest0
- Treatment
- mixture of liquid fraction from postferment with concentration of 1:500e0
- Outcome
- efficiencye0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“the highest efficiency was observed in case of fertilization of plants with the mixture of liquid fraction from postferment with concentration of 1:500”
t0“Onion for Chives”
Claim · model-written summary
Onion productivity fell slightly with increasing liquid fraction concentration and mineral fertilizer solution.
- Taxon
- onion
Allium cepae0 - Treatment
- increase of liquid fraction concentration and fertilization of plants with water solution of mineral fertilizerse0
- Outcome
- onion productivitye0
- Direction
- dropped slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Along with the increase of liquid fraction concentration and fertilization of plants with water solution of mineral fertilizers, onion productivity dropped slightly.”
Claim · model-written summary
Undiluted postferment liquid fraction caused some onion plants to die.
- Taxon
- Onion for Chivest0
- Treatment
- liquid fraction from postfermente0
- Outcome
- fractional dying of plantse0
Not reportedComparatorDirection
Verbatim
e0“Fertilization of plants with the liquid fraction from postferment resulted in fractional dying of plants and reduction of efficiency.”
t0“Onion for Chives”
Claim · model-written summary
Postferment liquid fraction reduced onion production efficiency.
- Taxon
- Onion for Chivest0
- Treatment
- liquid fraction from postfermente0
- Outcome
- efficiencye0
- Direction
- reductione0
Not reportedComparator
Verbatim
e0“Fertilization of plants with the liquid fraction from postferment resulted in fractional dying of plants and reduction of efficiency.”
t0“Onion for Chives”
Claim · model-written summary
Daily watering with clean water or liquid fraction diluted 1:100–1:500 kept crop nitrogen below the stated maximum.
- Taxon
- onionAllium cepae0
- Treatment
- every day watering of onion with clean water and mixture of liquid fraction with water concentration of 1:100-1:500e0
- Outcome
- nitrogen contente1
- Direction
- did not exceede0
- Value
- 800 mg·kg −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in case of every day watering of onion with clean water and mixture of liquid fraction with water concentration of 1:100-1:500 did not exceed the maximum admissible concentration which is 800 mg·kg −1”
e1“The crop control of nitrogen content proved that in case of every day watering of onion with clean water and mixture of liquid fraction with water concentration of 1:100-1:500 did not exceed the maximum admissible concentration which is 800 mg·kg −1 . Thus, in case of onion cultivation for chives”
Claim · model-written summary
The authors recommend 1:500 liquid fraction dilution for onion chive cultivation.
- Taxon
- onionAllium cepae1
- Outcome
- mixture of liquid fraction with water of 1:500 concentratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is recommended to use the mixture of liquid fraction with water of 1:500 concentration”
e1“The crop control of nitrogen content proved that in case of every day watering of onion with clean water and mixture of liquid fraction with water concentration of 1:100-1:500 did not exceed the maximum admissible concentration which is 800 mg·kg −1 . Thus, in case of onion cultivation for chives”
The same questions in other papers
fertilization · yield · Allium cepa (onion)Positive and negative results
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