Abstract
Low digestibility and toxicity of hydrocyanic acid (HCN) in sorghum forage are disadvantage for ruminant. Appropriate fertilizer application and planting strategy can improve sorghum yield and quality. A field experiment was aimed to investigate the productivity, nutrients content, and HCN concentration of Super-2 forage sorghum (Sorghum bicolor (L) Moench) at different planting spaces and levels of NPK fertilizer. The seeds were planted according to 3×3 factorial design in which the first factor was planting space (J1= 90×20 cm, J2= 75×25 cm, and J3= 60×30 cm) and the second factor was three levels of NPK fertilizer (P1= 0 kg/ha; P2= 100 kg/ha; and P3= 200 kg/ha, respectively). Crude protein (CP), crude fiber (CF), and HCN concentration were affected by the interaction of NPK levels × planting spaces (p<0.05). The CP and HCN content increased as NPK levels increased at all planting space patterns while CF content decreased. NPK fertilizer application significantly increased yield production (DM, OM, and CP productions), whereas planting space treatment did not show any improvement except for CF that significantly lower on 60×30 cm planting space. Sorghum receiving 200 kg/ha of NPK at 60×30 cm planting space produced the highest CP and the lowest CF content, resulting in the highest OM and CP biomass production. In conclusion, NPK fertilizer significantly improved productivity and nutrients composition and in the same way, also increased HCN concentration of sorghum Super-2 varieties.
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Claims 10
Claim · model-written summary
NPK and planting spacing interacted significantly for crude protein, crude fiber, and HCN concentration.
- Treatment
- interaction of NPK levels × planting spacese0
- Outcome
- Crude protein (CP), crude fiber (CF), and HCN concentratione0
SorghumNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Crude protein (CP), crude fiber (CF), and HCN concentration were affected by the interaction of NPK levels × planting spaces (p<0.05)”
e1“forage sorghum”
Claim · model-written summary
Crude protein content increased as NPK increased at all planting spaces.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The CP and HCN content increased as NPK levels increased at all planting space patterns”
e1“forage sorghum”
Claim · model-written summary
HCN content increased as NPK increased at all planting spaces.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The CP and HCN content increased as NPK levels increased at all planting space patterns”
e1“forage sorghum”
Claim · model-written summary
Crude fiber content decreased as NPK increased.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The CP and HCN content increased as NPK levels increased at all planting space patterns while CF content decreased”
e1“forage sorghum”
Claim · model-written summary
NPK significantly increased dry matter, organic matter, and crude protein production.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK fertilizer application significantly increased yield production (DM, OM, and CP productions)”
e1“forage sorghum”
Claim · model-written summary
Planting space had no reported yield improvement.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“planting space treatment did not show any improvement except for CF that significantly lower on 60×30 cm planting space”
e1“forage sorghum”
Claim · model-written summary
Crude fiber was significantly lower at 60×30 cm spacing.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CF that significantly lower on 60×30 cm planting space”
e1“forage sorghum”
Claim · model-written summary
At 200 kg/ha NPK and 60×30 cm spacing, crude protein was highest.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum receiving 200 kg/ha of NPK at 60×30 cm planting space produced the highest CP and the lowest CF content, resulting in the highest OM and CP biomass production”
Claim · model-written summary
At 200 kg/ha NPK and 60×30 cm spacing, crude fiber was lowest.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum receiving 200 kg/ha of NPK at 60×30 cm planting space produced the highest CP and the lowest CF content, resulting in the highest OM and CP biomass production”
Claim · model-written summary
At 200 kg/ha NPK and 60×30 cm spacing, organic matter and protein biomass production were highest.
- Treatment
- 200 kg/ha of NPK at 60×30 cm planting spacee0
- Outcome
- OM and CP biomass productione0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum receiving 200 kg/ha of NPK at 60×30 cm planting space produced the highest CP and the lowest CF content, resulting in the highest OM and CP biomass production”
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