Abstract
Abstract A 5-year sweet corn nutrition experiment involving 4 lime treatments, 14 fertilizer treatments, and 2 hybrids was conducted on Hagerstown silt loam which had an initial pH of 5.2. Calcitic, calcitic with 3% Mg and dolomitic (12% Mg) limes applied during the 1st and 3rd years at 4.5 MT/ha increased vigor, yield, percentage of marketable ears, leaf N, leaf P and decreased leaf Mn and Zn. Calcitic lime increased leaf Ca and Mg by 21% and 31%, respectively. Dolomitic lime more than doubled leaf Mg but did not affect leaf Ca. Dolomitic lime increased leaf Mg by 55% 60 days after application. The best fertilizer responses were obtained with 56 kg/ha each of N and P banded for ‘Northern Belle’, with 112 kg/ha of N (75% broadcast, 25% banded), and 56 kg/ha P banded for ‘Deep Gold’. These treatments increased yields (by 36% and 60%, respectively, compared to the check), plant height, ear size and weight, and hastened maturity by 5 days. Additions of K or Mg did not improve the response. Height and yield were reduced and maturity was delayed when Ca (NO 3 ) 2 rather than NH 4 NO 3 was used as the N source. Leaf Ca, Mg, and Mn were lower with Ca (NO 3 ) 2 than with NH 4 NO 3 and urea sources, but leaf N, P, Mn, Cu and Zn increased with the urea source. Leaf Ca and Mg were enhanced by NH 4 NO 3 , Ca (NO 3 ) 2 , and urea, and depressed by KC1.
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Claims 20
Claim · model-written summary
Calcitic, calcitic with 3% Mg and dolomitic limes at 4.5 MT/ha increased sweet corn vigor, yield and percentage of marketable ears.
- Taxon
- Sweet Cornt0
- Treatment
- Calcitic, calcitic with 3% Mg and dolomitic (12% Mg) limes applied during the 1st and 3rd years at 4.5 MT/hae1
- Outcome
- vigor, yield, percentage of marketable earse1
- Direction
- increasede1
- Setting
- Hagerstown silt loame0
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e0“conducted on Hagerstown silt loam”
e1“Calcitic, calcitic with 3% Mg and dolomitic (12% Mg) limes applied during the 1st and 3rd years at 4.5 MT/ha increased vigor, yield, percentage of marketable ears, leaf N, leaf P and decreased leaf Mn and Zn”
Claim · model-written summary
The same lime treatments increased leaf N and leaf P in sweet corn.
- Taxon
- Sweet Cornt0
- Treatment
- Calcitic, calcitic with 3% Mg and dolomitic (12% Mg) limes applied during the 1st and 3rd years at 4.5 MT/hae1
- Outcome
- leaf N, leaf Pe1
- Direction
- increasede1
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e1“Calcitic, calcitic with 3% Mg and dolomitic (12% Mg) limes applied during the 1st and 3rd years at 4.5 MT/ha increased vigor, yield, percentage of marketable ears, leaf N, leaf P and decreased leaf Mn and Zn”
Claim · model-written summary
The same lime treatments decreased leaf Mn and Zn in sweet corn.
- Taxon
- Sweet Cornt0
- Treatment
- Calcitic, calcitic with 3% Mg and dolomitic (12% Mg) limes applied during the 1st and 3rd years at 4.5 MT/hae1
- Outcome
- leaf Mn and Zne1
- Direction
- decreasede1
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e1“Calcitic, calcitic with 3% Mg and dolomitic (12% Mg) limes applied during the 1st and 3rd years at 4.5 MT/ha increased vigor, yield, percentage of marketable ears, leaf N, leaf P and decreased leaf Mn and Zn”
Claim · model-written summary
Calcitic lime increased leaf Ca by 21%.
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e2“Calcitic lime increased leaf Ca and Mg by 21% and 31%, respectively”
Claim · model-written summary
Calcitic lime increased leaf Mg by 31%.
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e2“Calcitic lime increased leaf Ca and Mg by 21% and 31%, respectively”
Claim · model-written summary
Dolomitic lime more than doubled leaf Mg in sweet corn.
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e3“Dolomitic lime more than doubled leaf Mg but did not affect leaf Ca”
Claim · model-written summary
Dolomitic lime did not affect leaf Ca in sweet corn.
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e3“Dolomitic lime more than doubled leaf Mg but did not affect leaf Ca”
Claim · model-written summary
Dolomitic lime increased leaf Mg by 55% 60 days after application.
- Taxon
- Sweet Cornt0
- Treatment
- Dolomitic limee4
- Outcome
- leaf Mge4
- Direction
- increasede4
- Value
- 55%e4
- Qualifier
- 60 days after applicatione4
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e4“Dolomitic lime increased leaf Mg by 55% 60 days after application”
Claim · model-written summary
Northern Belle yields increased by 36% under 56 kg/ha each of N and P banded, compared with the check.
Verbatim
t0“Sweet Corn Growth Responses”
e5“The best fertilizer responses were obtained with 56 kg/ha each of N and P banded for ‘Northern Belle’, with 112 kg/ha of N (75% broadcast, 25% banded), and 56 kg/ha P banded for ‘Deep Gold’. These treatments increased yields (by 36% and 60%, respectively, compared to the check)”
Claim · model-written summary
Deep Gold yields increased by 60% under 112 kg/ha of N and 56 kg/ha P banded, compared with the check.
Verbatim
t0“Sweet Corn Growth Responses”
e5“The best fertilizer responses were obtained with 56 kg/ha each of N and P banded for ‘Northern Belle’, with 112 kg/ha of N (75% broadcast, 25% banded), and 56 kg/ha P banded for ‘Deep Gold’. These treatments increased yields (by 36% and 60%, respectively, compared to the check)”
Claim · model-written summary
The fertilizer treatments increased plant height, ear size and ear weight in sweet corn.
Verbatim
t0“Sweet Corn Growth Responses”
e6“These treatments increased yields (by 36% and 60%, respectively, compared to the check), plant height, ear size and weight, and hastened maturity by 5 days”
Claim · model-written summary
The fertilizer treatments hastened sweet corn maturity by 5 days.
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e6“These treatments increased yields (by 36% and 60%, respectively, compared to the check), plant height, ear size and weight, and hastened maturity by 5 days”
Claim · model-written summary
Additions of K or Mg did not improve the fertilizer response.
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e7“Additions of K or Mg did not improve the response”
Claim · model-written summary
Using Ca(NO3)2 rather than NH4NO3 as N source reduced sweet corn height and yield.
Verbatim
t0“Sweet Corn Growth Responses”
e1“Height and yield were reduced and maturity was delayed when Ca (NO 3 ) 2 rather than NH 4 NO 3 was used as the N source”
Claim · model-written summary
Using Ca(NO3)2 rather than NH4NO3 as N source delayed sweet corn maturity.
Verbatim
t0“Sweet Corn Growth Responses”
e1“Height and yield were reduced and maturity was delayed when Ca (NO 3 ) 2 rather than NH 4 NO 3 was used as the N source”
Claim · model-written summary
Leaf Ca, Mg and Mn were lower with Ca(NO3)2 than with NH4NO3 and urea.
Verbatim
t0“Sweet Corn Growth Responses”
e1“Leaf Ca, Mg, and Mn were lower with Ca (NO 3 ) 2 than with NH 4 NO 3 and urea sources”
Claim · model-written summary
Urea increased leaf N, P and Mn in sweet corn.
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e1“but leaf N, P, Mn, Cu and Zn increased with the urea source”
Claim · model-written summary
Urea increased leaf Cu and Zn in sweet corn.
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e1“but leaf N, P, Mn, Cu and Zn increased with the urea source”
Claim · model-written summary
NH4NO3, Ca(NO3)2 and urea enhanced leaf Ca and Mg in sweet corn.
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e1“Leaf Ca and Mg were enhanced by NH 4 NO 3 , Ca (NO 3 ) 2 , and urea, and depressed by KC1”
Claim · model-written summary
KCl depressed leaf Ca and Mg in sweet corn.
Not reportedComparator
Verbatim
t0“Sweet Corn Growth Responses”
e1“Leaf Ca and Mg were enhanced by NH 4 NO 3 , Ca (NO 3 ) 2 , and urea, and depressed by KC1”
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