Abstract
A 3-year field experiment( six treatments: no fertilization,100% chemical fertilizer,green manure+100% chemical fertilizer,green manure+85% chemical fertilizer,green manure+70% chemical fertilizer,green manure+55% fertilizer) was conducted to study the effects of burying Vicia villosa Rothvar and chemical fertilizer reduction on soil fertility and corn yield. The results were as follows: Burying Vicia villosa Rothvar and chemical fertilizer reduction could improve the yield and utilization rate and agronomy efficiency. On the basis of burying Vicia villosa Rothvar( 15 t / hm2),reducing chemical fertilize by 45% could keep up with the local conventional level of corn yield,reducing chemical fertilize by 15%-30% could significantly increase the yield by 13. 52%-25. 70% and the utilization rates of N,P2O5,K2 O were improved by 11. 1%,6. 9%,5. 4% respectively and the agronomic efficiencies of N,P2O5,K2 O were increased by 7. 3 kg / kg,10. 9 kg / kg,7. 3 kg /kg respectively and the optimum treatment was reducing chemical fertilizer by15%. Burying Vicia villosa Rothvar and reducing chemical fertilizer for three consecutive years improved the contents of the soil organic matter,total nitrogen,available nitrogen and kept the contents of the available phosphorus,available potassium and reduced the soil bulk density. So on the basis of burying Vicia villosa Rothvar( 15 t / hm2),chemical fertilize could be reduced by 45% but to increase the yield,the optimum amount of chemical fertilize reduction was15%-30%.
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Claims 13
Claim · model-written summary
Burying Vicia with fertilizer reduction improved corn yield, fertilizer utilization, and agronomic efficiency.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- Burying Vicia villosa Rothvar and chemical fertilizer reductione0
- Outcome
- yield and utilization rate and agronomy efficiencye0
- Direction
- improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Burying Vicia villosa Rothvar and chemical fertilizer reduction could improve the yield and utilization rate and agronomy efficiency”
t0“Corn Yield”
Claim · model-written summary
With buried Vicia, 45% less fertilizer maintained conventional corn yield.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- reducing chemical fertilize by 45%e0
- Outcome
- corn yielde0
- Direction
- keep up withe0
- Comparator
- local conventional levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reducing chemical fertilize by 45% could keep up with the local conventional level of corn yield”
Claim · model-written summary
Reducing fertilizer by 15%-30% with buried Vicia significantly increased corn yield by 13. 52%-25. 70%.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- reducing chemical fertilize by 15%-30%e0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- 13. 52%-25. 70%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reducing chemical fertilize by 15%-30% could significantly increase the yield by 13. 52%-25. 70%”
t0“Corn Yield”
Claim · model-written summary
Fertilizer utilization of N improved by 11. 1%.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- utilization ratese0
- Direction
- improvede0
- Value
- 11. 1%e0
- Qualifier
- Ne0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the utilization rates of N,P2O5,K2 O were improved by 11. 1%,6. 9%,5. 4% respectively”
t0“Corn Yield”
Claim · model-written summary
Fertilizer utilization of P2O5 improved by 6. 9%.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- utilization ratese0
- Direction
- improvede0
- Value
- 6. 9%e0
- Qualifier
- P2O5e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the utilization rates of N,P2O5,K2 O were improved by 11. 1%,6. 9%,5. 4% respectively”
t0“Corn Yield”
Claim · model-written summary
Fertilizer utilization of K2 O improved by 5. 4%.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- utilization ratese0
- Direction
- improvede0
- Value
- 5. 4%e0
- Qualifier
- K2 Oe0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the utilization rates of N,P2O5,K2 O were improved by 11. 1%,6. 9%,5. 4% respectively”
t0“Corn Yield”
Claim · model-written summary
Agronomic efficiency of N rose by 7. 3 kg / kg.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- agronomic efficienciese0
- Direction
- increasede0
- Value
- 7. 3 kg / kge0
- Qualifier
- Ne0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the agronomic efficiencies of N,P2O5,K2 O were increased by 7. 3 kg / kg,10. 9 kg / kg,7. 3 kg /kg respectively”
t0“Corn Yield”
Claim · model-written summary
Agronomic efficiency of P2O5 rose by 10. 9 kg / kg.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- agronomic efficienciese0
- Direction
- increasede0
- Value
- 10. 9 kg / kge0
- Qualifier
- P2O5e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the agronomic efficiencies of N,P2O5,K2 O were increased by 7. 3 kg / kg,10. 9 kg / kg,7. 3 kg /kg respectively”
t0“Corn Yield”
Claim · model-written summary
Agronomic efficiency of K2 O rose by 7. 3 kg /kg.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- agronomic efficienciese0
- Direction
- increasede0
- Value
- 7. 3 kg /kge0
- Qualifier
- K2 Oe0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the agronomic efficiencies of N,P2O5,K2 O were increased by 7. 3 kg / kg,10. 9 kg / kg,7. 3 kg /kg respectively”
t0“Corn Yield”
Claim · model-written summary
Buried Vicia with reduced fertilizer improved soil organic matter, total nitrogen and available nitrogen.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- Burying Vicia villosa Rothvar and reducing chemical fertilizer for three consecutive yearse0
- Outcome
- contents of the soil organic matter,total nitrogen,available nitrogene0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Burying Vicia villosa Rothvar and reducing chemical fertilizer for three consecutive years improved the contents of the soil organic matter,total nitrogen,available nitrogen”
t0“Corn Yield”
Claim · model-written summary
Buried Vicia with reduced fertilizer kept soil available phosphorus and potassium content.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- Burying Vicia villosa Rothvar and reducing chemical fertilizer for three consecutive yearse1
- Outcome
- contents of the available phosphorus,available potassiume0
- Direction
- kepte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“kept the contents of the available phosphorus,available potassium”
e1“Burying Vicia villosa Rothvar and reducing chemical fertilizer for three consecutive years”
t0“Corn Yield”
Claim · model-written summary
Buried Vicia with reduced fertilizer reduced soil bulk density.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- Burying Vicia villosa Rothvar and reducing chemical fertilizer for three consecutive yearse1
- Outcome
- soil bulk densitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced the soil bulk density”
e1“Burying Vicia villosa Rothvar and reducing chemical fertilizer for three consecutive years”
t0“Corn Yield”
Claim · model-written summary
The authors recommend 15%-30% fertilizer reduction with buried Vicia to increase corn yield.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- optimum amount of chemical fertilize reduction was15%-30%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to increase the yield,the optimum amount of chemical fertilize reduction was15%-30%”
t0“Corn Yield”
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