Abstract
Tropical soils such as Ultisols fix phosphorus (P) because of their characteristically high contents of aluminium and iron. Organic amendments could be used to mitigate P fixation. This study aimed to: i) improve soil P availability, nutrients uptake, and yield of Zea mays L. using biochar and pineapple leaf residues compost; and ii) determine if the use of biochar and pineapple leaf residues compost could exert a residual effect on P. Two cycles of field trials were carried out and the test crop used was Zea mays L. hybrid F1. At harvest, the plants were harvested, partitioned into leaves and stems, and analysed. Soil samples were also collected and analysed. The results suggest that the soil total P, available P, inorganic P, and organic P recovered from the treatments with the organic amendments were higher compared with the nonorganic amendments. The availability of soil macro-nutrients in the soils and Zea mays L. yield were higher in the treatments with the organic amendments in the first and second field trials. Amending chemical fertilisers with organic amendments have a larger residual effect than chemical fertilisers only and can be used to ameliorate P fixation of acid soils to improve maize production on acid soils.
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Claims 6
Claim · model-written summary
Soil total P, available P and inorganic P were higher in treatments with organic amendments than with nonorganic amendments in maize field trials.
- Treatment
- organic amendmentse0
- Outcome
- soil total P, available P, inorganic Pe0
- Direction
- highere0
- Comparator
- nonorganic amendmentse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soil total P, available P, inorganic P, and organic P recovered from the treatments with the organic amendments were higher compared with the nonorganic amendments”
t0“Zea mays l.”
Claim · model-written summary
Soil organic P was higher in treatments with organic amendments than with nonorganic amendments in maize field trials.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soil total P, available P, inorganic P, and organic P recovered from the treatments with the organic amendments were higher compared with the nonorganic amendments”
t0“Zea mays l.”
Claim · model-written summary
Availability of soil macro-nutrients was higher in treatments with organic amendments in the first and second field trials.
- Treatment
- organic amendmentse0
- Outcome
- availability of soil macro-nutrientse0
- Direction
- highere0
- Qualifier
- first and second field trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The availability of soil macro-nutrients in the soils and Zea mays L. yield were higher in the treatments with the organic amendments in the first and second field trials”
Claim · model-written summary
Zea mays L. yield was higher in treatments with organic amendments in the first and second field trials.
- Treatment
- organic amendmentse0
- Outcome
- Zea mays L. yielde0
- Direction
- highere0
- Qualifier
- first and second field trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The availability of soil macro-nutrients in the soils and Zea mays L. yield were higher in the treatments with the organic amendments in the first and second field trials”
Claim · model-written summary
Amending chemical fertilisers with organic amendments had a larger residual effect than chemical fertilisers only in maize.
- Treatment
- Amending chemical fertilisers with organic amendmentse0
- Outcome
- residual effecte0
- Direction
- largere0
- Comparator
- chemical fertilisers onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Amending chemical fertilisers with organic amendments have a larger residual effect than chemical fertilisers only and can be used to ameliorate P fixation of acid soils to improve maize production on acid soils”
Claim · model-written summary
Amending chemical fertilisers with organic amendments can be used to ameliorate P fixation of acid soils and so improve maize production.
- Outcome
- ameliorate P fixation of acid soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Amending chemical fertilisers with organic amendments have a larger residual effect than chemical fertilisers only and can be used to ameliorate P fixation of acid soils to improve maize production on acid soils”
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