Abstract
Sorghum [Sorghum bicolor (L) Moench) is a major grain crop in Burkina Faso. A three-year experiment was conducted in the Sudanian zone to determine the combined effects of tillage methods (T) and cropping systems with different soil amendments (CS/SA) on plant nutrient concentrations and related this to human and cattle nutrient requirements. The analysis of variance indicated that tillage, soil amendment nor cropping system affected the stover nutrient concentration of grain sorghum. Nitrogen, P, K, S, Ca, Mg, Zn, Mn and Cu concentrations in grain were all influenced by the Y x T interaction largely due to increased nutrient concentrations for no-till in 2012 and tied ridges in 2013. As grain yield increased, grain N, Ca, Mg and Mn concentrations decreased while P and Zn increased. Grain N, P, Mg, S, Fe and Zn concentrations met human nutritional requirements, while K, Ca, Mn and Cu were deficient and merited supplementation. Nutrient gross means indicated that cattle nutrient requirements were met for N, P, Mg, Fe and Zn, but low for K, Ca, S, Mn and Cu. Tillage, CS/SA and Y had no or small effects on the nutrient concentrations of sorghum grain and stover. The agroecological zones in 2012 and 2013 indicated most nutrients to be adequate for human and cattle diets, but not for K, Ca, Mn and Cu.
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Claims 8
Claim · model-written summary
Tillage, amendments and cropping system did not affect stover nutrient concentration.
SorghumNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The analysis of variance indicated that tillage, soil amendment nor cropping system affected the stover nutrient concentration of grain sorghum.”
Claim · model-written summary
Year by tillage influenced grain nutrient concentrations, with increases under no till in 2012 and tied ridges in 2013.
- Treatment
- no-till in 2012 and tied ridges in 2013e0
- Outcome
- concentrations in graine0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen, P, K, S, Ca, Mg, Zn, Mn and Cu concentrations in grain were all influenced by the Y x T interaction largely due to increased nutrient concentrations for no-till in 2012 and tied ridges in 2013.”
t0“sorghum”
Claim · model-written summary
Increasing grain yield was associated with lower grain N, Ca and Mg concentrations.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As grain yield increased, grain N, Ca, Mg and Mn concentrations decreased while P and Zn increased.”
t0“sorghum”
Claim · model-written summary
Increasing grain yield was associated with higher grain P and Zn.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As grain yield increased, grain N, Ca, Mg and Mn concentrations decreased while P and Zn increased.”
t0“sorghum”
Claim · model-written summary
Grain N, P, Mg, S, Fe and Zn met human nutritional requirements.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain N, P, Mg, S, Fe and Zn concentrations met human nutritional requirements”
t0“sorghum”
Claim · model-written summary
Grain K, Ca, Mn and Cu were deficient for human requirements.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while K, Ca, Mn and Cu were deficient and merited supplementation.”
t0“sorghum”
Claim · model-written summary
Sorghum means met cattle nutrient requirements for N, P, Mg, Fe and Zn.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nutrient gross means indicated that cattle nutrient requirements were met for N, P, Mg, Fe and Zn, but low for K, Ca, S, Mn and Cu.”
t0“sorghum”
Claim · model-written summary
Sorghum means were low for cattle requirements for K, Ca, S, Mn and Cu.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nutrient gross means indicated that cattle nutrient requirements were met for N, P, Mg, Fe and Zn, but low for K, Ca, S, Mn and Cu.”
t0“sorghum”
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