Abstract
Abstract Acidity and low P availability in tropical soils constrain cassava ( Manihot esculenta Crantz) yield. Liming increases soil Ca and P availability, but Ca can increase the storage root cooking time, and its effects vary with soil P availability. The effects of liming and P fertilization on cassava yield and their relationship with storage root cooking need to be better understood. A 2‐yr field experiment was conducted to evaluate the effect of liming at 0, 1.5, 3.1, and 4.8 Mg ha −1 with 0 or 70 kg P ha −1 on plant nutritional status and growth, yield, and cooking of fresh storage roots of the cassava cultivar IAC 576‐70. Foliar concentrations were increased for N, P, and Mg and reduced for Mn and Zn with lime application. Maximum cassava fresh storage root yield (26.4 Mg ha −1 ) was obtained with an optimal lime rate of 3.0 Mg ha −1 and a base saturation of 50%. Liming promoted a 6.5% increase (1.7 min) in the cooking time of storage roots. Application of P fertilizer increased shoot biomass in acidic soil and the diameter and mean weight of the storage roots in the amended soil. Phosphorus fertilization increased the yield (22% or 4.7 Mg ha −1 ) and P concentration of the storage roots without changing their P/Ca ratio or cooking time. Liming and P fertilization can be managed to improve cassava storage root yield without affecting storage root cooking.
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Claims 10
Claim · model-written summary
The maximum cassava fresh storage root yield was obtained at an optimal lime rate of 3.0 Mg ha −1 with 50% base saturation.
- Taxon
- cassava
Manihot esculentae1 - Treatment
- an optimal lime rate of 3.0 Mg ha −1e1
- Outcome
- fresh storage root yielde1
- Direction
- Maximume1
- Value
- 26.4 Mg ha −1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Maximum cassava fresh storage root yield (26.4 Mg ha −1 ) was obtained with an optimal lime rate of 3.0 Mg ha −1 and a base saturation of 50%”
Claim · model-written summary
Liming increased cassava storage root cooking time by 6.5%, or 1.7 min.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Liminge2
- Outcome
- cooking timee2
- Direction
- increasee2
- Value
- 6.5%e2
- Qualifier
- 1.7 mine2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) yield”
e2“Liming promoted a 6.5% increase (1.7 min) in the cooking time of storage roots”
Claim · model-written summary
Phosphorus fertilization increased cassava shoot biomass in acidic soil.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Application of P fertilizere3
- Outcome
- shoot biomasse3
- Direction
- increasede3
- Setting
- acidic soile3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) yield”
e3“Application of P fertilizer increased shoot biomass in acidic soil”
Claim · model-written summary
Phosphorus fertilization increased the diameter and mean weight of cassava storage roots in the amended soil.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Application of P fertilizere4
- Outcome
- diameter and mean weight of the storage rootse4
- Direction
- increasede4
- Setting
- amended soile4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) yield”
e4“Application of P fertilizer increased shoot biomass in acidic soil and the diameter and mean weight of the storage roots in the amended soil”
Claim · model-written summary
Phosphorus fertilization increased cassava storage root yield by 22%, or 4.7 Mg ha −1.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Phosphorus fertilizatione5
- Outcome
- yielde5
- Direction
- increasede5
- Value
- 22% or 4.7 Mg ha −1e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) yield”
e5“Phosphorus fertilization increased the yield (22% or 4.7 Mg ha −1) and P concentration of the storage roots without changing their P/Ca ratio or cooking time”
Claim · model-written summary
Phosphorus fertilization increased the P concentration of cassava storage roots.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Phosphorus fertilizatione5
- Outcome
- P concentration of the storage rootse5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) yield”
e5“Phosphorus fertilization increased the yield (22% or 4.7 Mg ha −1) and P concentration of the storage roots without changing their P/Ca ratio or cooking time”
Claim · model-written summary
Phosphorus fertilization did not change the P/Ca ratio or cooking time of cassava storage roots.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Phosphorus fertilizatione5
- Outcome
- P/Ca ratio or cooking timee5
- Direction
- without changinge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) yield”
e5“Phosphorus fertilization increased the yield (22% or 4.7 Mg ha −1) and P concentration of the storage roots without changing their P/Ca ratio or cooking time”
Claim · model-written summary
Lime application increased foliar concentrations of N, P and Mg in cassava.
- Taxon
- cassavaManihot esculentae0
- Treatment
- lime applicatione6
- Outcome
- Foliar concentrationse6
- Direction
- increasede6
- Qualifier
- for N, P, and Mge6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) yield”
e6“Foliar concentrations were increased for N, P, and Mg and reduced for Mn and Zn with lime application”
Claim · model-written summary
Lime application reduced foliar concentrations of Mn and Zn in cassava.
- Taxon
- cassavaManihot esculentae0
- Treatment
- lime applicatione6
- Outcome
- Foliar concentrationse6
- Direction
- reducede6
- Qualifier
- for Mn and Zne6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) yield”
e6“Foliar concentrations were increased for N, P, and Mg and reduced for Mn and Zn with lime application”
Claim · model-written summary
Liming and phosphorus fertilization can be managed to improve cassava storage root yield without affecting cooking.
- Taxon
- cassavaManihot esculentae7
- Treatment
- Liming and P fertilizatione7
- Outcome
- storage root yielde7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Liming and P fertilization can be managed to improve cassava storage root yield without affecting storage root cooking”
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