Abstract
Abstract A greenhouse study was conducted to evaluate the performance of maize ( Zea mays L.) on Iwo Soil in relation to different levels of soil moisture, soil compaction and K fertilization. Reductions in dry matter yields of maize were closely associated with soil moisture stress and compaction. There was significant interaction between soil moisture and bulk density, with highest yields occurring at 17% and 21% soil moisture levels for 1.6 and 1.2 g/cm 3 bulk densities, respectively. Moisture stress and compaction resulted in greater reductions in the yield of roots than that of shoot. Yield and K uptake were more adversely affected by compaction compared to soil moisture stress. Addition of K increased yield and plant K content but the 60 ppm and 120 ppm rates were not significantly different in terms of improving crop performance. Implications of the results relative to long‐term management of Iwo Soil are discussed.
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Claims 8
Claim · model-written summary
Moisture stress and compaction were associated with reduced maize dry matter yield.
- Treatment
- soil moisture stress and compactione0
- Outcome
- dry matter yields of maizee0
- Direction
- Reductionse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reductions in dry matter yields of maize were closely associated with soil moisture stress and compaction.”
Claim · model-written summary
Soil moisture and bulk density interacted significantly for maize yield, with maxima at 17% moisture and 1.6 g/cm 3 bulk density.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was significant interaction between soil moisture and bulk density, with highest yields occurring at 17% and 21% soil moisture levels for 1.6 and 1.2 g/cm 3 bulk densities, respectively.”
t0“maize (Zea mays L.)”
Claim · model-written summary
The other yield maximum occurred at 21% soil moisture and 1.2 g/cm 3 bulk density.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest yields occurring at 17% and 21% soil moisture levels for 1.6 and 1.2 g/cm 3 bulk densities, respectively.”
t0“maize (Zea mays L.)”
Claim · model-written summary
Moisture stress and compaction reduced root yield more than shoot yield.
- Treatment
- Moisture stress and compactione0
- Outcome
- yield of rootse0
- Direction
- greater reductionse0
- Comparator
- shoote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moisture stress and compaction resulted in greater reductions in the yield of roots than that of shoot.”
t0“maize (Zea mays L.)”
Claim · model-written summary
Compaction affected yield more adversely than moisture stress.
- Treatment
- compactione0
- Outcome
- Yielde0
- Direction
- more adversely affectede0
- Comparator
- soil moisture stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield and K uptake were more adversely affected by compaction compared to soil moisture stress.”
t0“maize (Zea mays L.)”
Claim · model-written summary
Compaction affected K uptake more adversely than moisture stress.
- Treatment
- compactione0
- Outcome
- K uptakee0
- Direction
- more adversely affectede0
- Comparator
- soil moisture stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield and K uptake were more adversely affected by compaction compared to soil moisture stress.”
t0“maize (Zea mays L.)”
Claim · model-written summary
K addition increased maize yield and plant K content.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of K increased yield and plant K content”
t0“maize (Zea mays L.)”
Claim · model-written summary
The 60 ppm and 120 ppm K rates did not differ significantly in crop performance.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 60 ppm and 120 ppm rates were not significantly different in terms of improving crop performance”
t0“maize (Zea mays L.)”
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