Abstract
Soil phosphorus (P) limitation in karst areas has severely constrained soil quality and land productivity. To enhance silage maize yield and quality and alleviate and/or balance the low phosphorus availability in the karst areas of China, the experiment investigated the effects of different tillage and residue retention practices on silage maize yield and quality and soil phosphorus in this region. The treatment set included: conventional tillage (CT), conventional tillage and root stubble retention (CTH), conventional tillage and mulch (CTM), conventional tillage and crushing and incorporation of hairy vetch by tillage (CTR), no tillage (NT), no tillage and root stubble retention (NTH), no tillage and mulch (NTM), and no tillage and living mulch (NTLM). The results showed that CTM, NTM, CTR, and NTLM significantly increased the height and LAI of silage maize compared with the CT, NT, and NTH treatments. CTM, CTR, and NTM significantly enhanced maize yield. Compared with conventional tillage, not tilling had a more pronounced improvement in silage quality, whereas residue retention hardly affected corn quality. In addition, although not tilling does not significantly increase acid phosphatase activity, it appeared to be advantageous in increasing soil microbial phosphorus and available phosphorus content when combined with cover crop measures. Ultimately, we concluded that NTM and NTLM are beneficial for silage maize yield and quality and soil phosphorus content in karst areas and verified the advantages of combining no tillage and residue retention practices for silage maize production and soil phosphorus improvement in the karst areas of China.
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Claims 12
Claim · model-written summary
CTM significantly increased silage maize height and LAI compared with CT, NT and NTH.
Verbatim
e0“The results showed that CTM, NTM, CTR, and NTLM significantly increased the height and LAI of silage maize compared with the CT, NT, and NTH treatments”
Claim · model-written summary
NTM significantly increased silage maize height and LAI compared with CT, NT and NTH.
Verbatim
e0“The results showed that CTM, NTM, CTR, and NTLM significantly increased the height and LAI of silage maize compared with the CT, NT, and NTH treatments”
Claim · model-written summary
CTR significantly increased silage maize height and LAI compared with CT, NT and NTH.
Verbatim
e0“The results showed that CTM, NTM, CTR, and NTLM significantly increased the height and LAI of silage maize compared with the CT, NT, and NTH treatments”
Claim · model-written summary
NTLM significantly increased silage maize height and LAI compared with CT, NT and NTH.
Verbatim
e0“The results showed that CTM, NTM, CTR, and NTLM significantly increased the height and LAI of silage maize compared with the CT, NT, and NTH treatments”
Claim · model-written summary
CTM significantly enhanced maize yield.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“CTM, CTR, and NTM significantly enhanced maize yield”
Claim · model-written summary
CTR significantly enhanced maize yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“CTM, CTR, and NTM significantly enhanced maize yield”
Claim · model-written summary
NTM significantly enhanced maize yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“CTM, CTR, and NTM significantly enhanced maize yield”
Claim · model-written summary
Not tilling gave a more pronounced improvement in silage quality than conventional tillage.
- Taxon
- corn
Zea mays subsp. mayse2 - Treatment
- not tillinge2
- Outcome
- silage qualitye2
- Direction
- more pronounced improvemente2
- Comparator
- conventional tillagee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Compared with conventional tillage, not tilling had a more pronounced improvement in silage quality, whereas residue retention hardly affected corn quality”
Claim · model-written summary
Residue retention hardly affected corn quality.
- Taxon
- cornZea mays subsp. mayse2
- Treatment
- residue retentione2
- Outcome
- corn qualitye2
- Direction
- hardly affectede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Compared with conventional tillage, not tilling had a more pronounced improvement in silage quality, whereas residue retention hardly affected corn quality”
Claim · model-written summary
Not tilling did not significantly increase acid phosphatase activity.
- Taxon
- silage maizee0
- Treatment
- not tillinge3
- Outcome
- acid phosphatase activitye3
- Direction
- does not significantly increasee3
Not reportedComparator
Verbatim
e0“The results showed that CTM, NTM, CTR, and NTLM significantly increased the height and LAI of silage maize”
e3“although not tilling does not significantly increase acid phosphatase activity”
Claim · model-written summary
Not tilling combined with cover crop measures appeared to increase soil microbial phosphorus and available phosphorus content.
- Taxon
- silage maizee0
- Treatment
- cover crop measurese3
- Outcome
- soil microbial phosphorus and available phosphorus contente3
- Direction
- increasinge3
- Qualifier
- appeared to be advantageouse3
Not reportedComparator
Verbatim
e0“The results showed that CTM, NTM, CTR, and NTLM significantly increased the height and LAI of silage maize”
e3“it appeared to be advantageous in increasing soil microbial phosphorus and available phosphorus content when combined with cover crop measures”
Claim · model-written summary
No-tillage with mulch or living mulch is beneficial for silage maize yield, quality and soil phosphorus content in karst areas.
Verbatim
e4“we concluded that NTM and NTLM are beneficial for silage maize yield and quality and soil phosphorus content in karst areas”
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