Abstract
Taking Brassica campestris L.ssp.Chinensis as material,the pot experiment was conducted to study the effects of combined application of nitrogen and potassium fertilizers on yield and quality of Chinese cabbage.The results showed that with the nitrogen application of 100mg/kg,the yield and chlorophyll content of Chinese cabbage were the highest, but yield and chlorophyll content were decreased at 200mg/kg.The content of nitrate nitrogen was increased with increase of nitrogen application rate;but it was contrary for content of vitamin C and soluble sugar of Chinese cabbage. The yield,content of chlorophyll,vitamin C and soluble sugar of Chinese cabbage were increased with increase of potassium application rate,and content of nitrate nitrogen decreased.The yield of N2 K3(N 100mg/kg,K 300mg/kg) combination was the highest;N1 K3(N 50 mg/kg,K 300 mg/kg)combination was the most suitable for quality. Summarized above results,it found that the optimal combination of nitrogen and potassium to obtain Chinese cabbage with high yield and quality was 50~100mg/kg nitrogen together with 200~300mg/kg potassium.
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Claims 10
Claim · model-written summary
Nitrogen at 100 mg/kg gave the highest yield and chlorophyll content of Chinese cabbage.
- Taxon
- Chinese Cabbage
Brassica rapa subsp. pekinensist0 - Treatment
- nitrogen application of 100mg/kge1
- Outcome
- yield and chlorophyll contente1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield and Quality of Chinese Cabbage”
e1“with the nitrogen application of 100mg/kg,the yield and chlorophyll content of Chinese cabbage were the highest, but yield and chlorophyll content were decreased at 200mg/kg”
Claim · model-written summary
Nitrogen at 200 mg/kg decreased yield and chlorophyll content of Chinese cabbage relative to 100 mg/kg.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- 200mg/kge1
- Outcome
- yield and chlorophyll contente1
- Direction
- decreasede1
- Comparator
- nitrogen application of 100mg/kge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield and Quality of Chinese Cabbage”
e1“with the nitrogen application of 100mg/kg,the yield and chlorophyll content of Chinese cabbage were the highest, but yield and chlorophyll content were decreased at 200mg/kg”
Claim · model-written summary
Increasing nitrogen application rate increased nitrate nitrogen content of Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- nitrogen application ratee3
- Outcome
- content of nitrate nitrogene3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield and Quality of Chinese Cabbage”
e3“The content of nitrate nitrogen was increased with increase of nitrogen application rate;but it was contrary for content of vitamin C and soluble sugar of Chinese cabbage”
Claim · model-written summary
Increasing nitrogen application rate decreased vitamin C and soluble sugar content of Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- nitrogen application ratee3
- Outcome
- content of vitamin C and soluble sugare3
- Direction
- decreaseinferrede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield and Quality of Chinese Cabbage”
e3“The content of nitrate nitrogen was increased with increase of nitrogen application rate;but it was contrary for content of vitamin C and soluble sugar of Chinese cabbage”
Claim · model-written summary
Increasing potassium application rate increased yield, chlorophyll content and vitamin C of Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- potassium application ratee4
- Outcome
- yield,content of chlorophyll,vitamin Ce4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield and Quality of Chinese Cabbage”
e4“The yield,content of chlorophyll,vitamin C and soluble sugar of Chinese cabbage were increased with increase of potassium application rate,and content of nitrate nitrogen decreased”
Claim · model-written summary
Increasing potassium application rate increased soluble sugar content of Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- potassium application ratee4
- Outcome
- soluble sugare4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield and Quality of Chinese Cabbage”
e4“The yield,content of chlorophyll,vitamin C and soluble sugar of Chinese cabbage were increased with increase of potassium application rate,and content of nitrate nitrogen decreased”
Claim · model-written summary
Increasing potassium application rate decreased nitrate nitrogen content of Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- potassium application ratee4
- Outcome
- content of nitrate nitrogene4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield and Quality of Chinese Cabbage”
e4“The yield,content of chlorophyll,vitamin C and soluble sugar of Chinese cabbage were increased with increase of potassium application rate,and content of nitrate nitrogen decreased”
Claim · model-written summary
The combination of N 100 mg/kg and K 300 mg/kg gave the highest yield of Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- N 100mg/kg,K 300mg/kge5
- Outcome
- yielde5
- Direction
- higheste5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield and Quality of Chinese Cabbage”
e5“The yield of N2 K3(N 100mg/kg,K 300mg/kg) combination was the highest”
Claim · model-written summary
The combination of N 50 mg/kg and K 300 mg/kg was the most suitable for quality of Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- N 50 mg/kg,K 300 mg/kge6
- Outcome
- qualitye6
- Direction
- most suitablee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield and Quality of Chinese Cabbage”
e6“N1 K3(N 50 mg/kg,K 300 mg/kg)combination was the most suitable for quality”
Claim · model-written summary
Nitrogen at 50-100 mg/kg with potassium at 200-300 mg/kg is the optimal combination for high yield and quality of Chinese cabbage.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise7
- Treatment
- 50~100mg/kg nitrogen together with 200~300mg/kg potassiume7
- Outcome
- high yield and qualitye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“the optimal combination of nitrogen and potassium to obtain Chinese cabbage with high yield and quality was 50~100mg/kg nitrogen together with 200~300mg/kg potassium”
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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.