Abstract
Taking lettuce as test material,the effect of different nitrogen fertilizers on lettuce yield,quality and soil environment were studied.The results showed that fertilization significantly increased the yield of lettuce,production increase effect of organic fertilizer+chemical fertilizer was the best.Fertilization decreased the soluble sugar content,soluble protein content of lettuce was increased,all with separate fertilizer was the highest;fertilization significantly increased the vitamin C content of lettuce,as a single application of organic fertilizer was the highest,organic fertilizer+chemical fertilizer secondly;fertilization significantly increased nitrate and nitrite content,the largest increase in separate fertilizer,organic fertilizer+chemical fertilizer secondly,single application of organic manure minimum.Application of chemical fertilizer significantly increased soil electrical conductivity,pH value and soluble salt content,nitrogen content,organic matter,available P and available K content decreased slightly;the separate application of organic fertilizer,organic fertilizer+chemical fertilizer significantly decreased soil pH value,significantly increased soil organic matter and nitrogen content,soil soluble salt,available P,available K content and electric conductivity value increased slightly.In sunlight greenhouse production,combined application of organic fertilizer+chemical fertilizer was in favour of coordinating the relationship between yields,quality,soil environment,to realize the sustainable development.
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Claims 11
Claim · model-written summary
Fertilization significantly increased lettuce yield, with combined organic and chemical fertilizer producing the best yield gain.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- fertilizatione0
- Outcome
- yield of lettucee0
- Direction
- increasede0
- Qualifier
- organic fertilizer+chemical fertilizer was the beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization significantly increased the yield of lettuce,production increase effect of organic fertilizer+chemical fertilizer was the best.”
t0“Effect Application of Different Nitrogen Fertilizers on Lettuce Yield,Quality and Soil Environment”
Claim · model-written summary
Fertilization decreased soluble sugar content in lettuce.
- Taxon
- lettuceLactuca sativat0
- Treatment
- Fertilizatione0
- Outcome
- soluble sugar contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization decreased the soluble sugar content”
t0“Effect Application of Different Nitrogen Fertilizers on Lettuce Yield,Quality and Soil Environment”
Claim · model-written summary
Fertilization increased soluble protein content in lettuce, highest under separate fertilizer.
- Taxon
- lettuceLactuca sativae0
- Treatment
- Nitrogen Fertilizerst0
- Outcome
- soluble protein contente0
- Direction
- increasede0
- Qualifier
- separate fertilizer was the higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soluble protein content of lettuce was increased,all with separate fertilizer was the highest”
t0“Effect Application of Different Nitrogen Fertilizers on Lettuce Yield,Quality and Soil Environment”
Claim · model-written summary
Fertilization significantly increased lettuce vitamin C content, highest with organic fertilizer alone.
- Taxon
- lettuceLactuca sativae0
- Treatment
- fertilizatione0
- Outcome
- vitamin C contente0
- Direction
- increasede0
- Qualifier
- single application of organic fertilizer was the highest,organic fertilizer+chemical fertilizer secondlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization significantly increased the vitamin C content of lettuce,as a single application of organic fertilizer was the highest,organic fertilizer+chemical fertilizer secondly”
t0“Effect Application of Different Nitrogen Fertilizers on Lettuce Yield,Quality and Soil Environment”
Claim · model-written summary
Fertilization significantly increased lettuce nitrate and nitrite contents, greatest under separate fertilizer.
- Taxon
- lettuceLactuca sativat0
- Treatment
- fertilizatione0
- Outcome
- nitrate and nitrite contente0
- Direction
- increasede0
- Qualifier
- largest increase in separate fertilizer,organic fertilizer+chemical fertilizer secondly,single application of organic manure minimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization significantly increased nitrate and nitrite content,the largest increase in separate fertilizer,organic fertilizer+chemical fertilizer secondly,single application of organic manure minimum”
t0“Effect Application of Different Nitrogen Fertilizers on Lettuce Yield,Quality and Soil Environment”
Claim · model-written summary
Chemical fertilizer significantly increased soil electrical conductivity, pH and soluble salt content.
- Taxon
- lettuceLactuca sativat0
- Treatment
- chemical fertilizere0
- Outcome
- soil electrical conductivity,pH value and soluble salt contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of chemical fertilizer significantly increased soil electrical conductivity,pH value and soluble salt content”
t0“Effect Application of Different Nitrogen Fertilizers on Lettuce Yield,Quality and Soil Environment”
Claim · model-written summary
Chemical fertilizer slightly decreased soil nitrogen, organic matter and available P and K.
- Taxon
- lettuceLactuca sativat0
- Treatment
- chemical fertilizere0
- Outcome
- nitrogen content,organic matter,available P and available K contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of chemical fertilizer significantly increased soil electrical conductivity,pH value and soluble salt content,nitrogen content,organic matter,available P and available K content decreased slightly”
t0“Effect Application of Different Nitrogen Fertilizers on Lettuce Yield,Quality and Soil Environment”
Claim · model-written summary
Organic fertilizer alone and combined with chemical fertilizer significantly decreased soil pH.
- Taxon
- lettuceLactuca sativat0
- Treatment
- organic fertilizer,organic fertilizer+chemical fertilizere0
- Outcome
- soil pH valuee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the separate application of organic fertilizer,organic fertilizer+chemical fertilizer significantly decreased soil pH value”
t0“Effect Application of Different Nitrogen Fertilizers on Lettuce Yield,Quality and Soil Environment”
Claim · model-written summary
Organic fertilizer alone and combined with chemical fertilizer significantly increased soil organic matter and nitrogen.
- Taxon
- lettuceLactuca sativat0
- Treatment
- organic fertilizer,organic fertilizer+chemical fertilizere0
- Outcome
- soil organic matter and nitrogen contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“organic fertilizer,organic fertilizer+chemical fertilizer significantly decreased soil pH value,significantly increased soil organic matter and nitrogen content”
t0“Effect Application of Different Nitrogen Fertilizers on Lettuce Yield,Quality and Soil Environment”
Claim · model-written summary
Organic fertilizer alone and combined with chemical fertilizer slightly increased soil salt, available P and K, and conductivity.
- Taxon
- lettuceLactuca sativat0
- Treatment
- organic fertilizer,organic fertilizer+chemical fertilizere0
- Outcome
- soil soluble salt,available P,available K content and electric conductivity valuee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the separate application of organic fertilizer,organic fertilizer+chemical fertilizer significantly decreased soil pH value,significantly increased soil organic matter and nitrogen content,soil soluble salt,available P,available K content and electric conductivity value increased slightly”
t0“Effect Application of Different Nitrogen Fertilizers on Lettuce Yield,Quality and Soil Environment”
Claim · model-written summary
The authors recommend combined organic and chemical fertilizer for greenhouse lettuce production to coordinate yield, quality and soil environment.
- Taxon
- lettuceLactuca sativat0
- Treatment
- combined application of organic fertilizer+chemical fertilizere0
- Outcome
- coordinating the relationship between yields,quality,soil environmente0
- Setting
- sunlight greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In sunlight greenhouse production,combined application of organic fertilizer+chemical fertilizer was in favour of coordinating the relationship between yields,quality,soil environment,to realize the sustainable development.”
t0“Effect Application of Different Nitrogen Fertilizers on Lettuce Yield,Quality and Soil Environment”
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