Abstract
By field experiments, the conversion of ammonium and urea in soil were studied. The effects of different sources of Nitrogen on the growth and nutrient content of fluecured tobacco were also investigated under the condition of using nitrification inhibitor (DCD). All results show that the ammonium nitrification and urea hydrolysis completed in one month, the concentration of both nitrate and ammonium reduced to trance level in the month after application. Nitrification inhibitor(DCD) has significantly effect on restraining nitrification of ammonium. Nitrate and ammonium have the same effects to grow the yield of tobacco but the application of rape cake and wheat straw clearly reduced tobacco yield.
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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Ammonium nitrification and urea hydrolysis finished in one month.
Verbatim
e0“the ammonium nitrification and urea hydrolysis completed in one month”
t0“Flue-cured Tobacco”
Claim · model-written summary
Soil nitrate and ammonium fell to trace levels in the month after application.
Verbatim
e0“the concentration of both nitrate and ammonium reduced to trance level in the month after application”
t0“Flue-cured Tobacco”
Claim · model-written summary
DCD significantly restrained ammonium nitrification.
- Taxon
- flue-cured tobaccot0
- Treatment
- Nitrification inhibitor(DCD)e0
- Outcome
- nitrification of ammoniume0
- Direction
- restraininge0
Not reportedComparator
Verbatim
e0“Nitrification inhibitor(DCD) has significantly effect on restraining nitrification of ammonium”
t0“Flue-cured Tobacco”
Claim · model-written summary
Nitrate and ammonium sources had the same effect on tobacco yield.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- Nitratee0
- Outcome
- yield of tobaccoe0
- Direction
- same effectse0
- Comparator
- ammoniume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrate and ammonium have the same effects to grow the yield of tobacco”
Claim · model-written summary
Rape cake reduced tobacco yield.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- rape cakee0
- Outcome
- tobacco yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of rape cake and wheat straw clearly reduced tobacco yield”
Claim · model-written summary
Wheat straw reduced tobacco yield.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- wheat strawe0
- Outcome
- tobacco yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of rape cake and wheat straw clearly reduced tobacco yield”
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