Abstract
A field experiment was conducted on an acid Typic Dystrochrept of Sikkim to compare the efficacy of dolomitic limestone when broadcast once in three years and in furrows every year. The yield of maize grain was comparable when 2 Mg ha−1 limestone was broadcast once in three years and 250 kg ha−1 applied every year in furrows. The lower dose in furrows could decrease slowly the exchangeable acidity and Al3+ and increase soil pH and exchangeable Ca2+ + Mg2+, whereas the higher dose (broadcast) showed the reverse trend with passage of time. Limestone application improved the Ca and Mg nutrition of plant. The furrow application suits social, economical and topographical conditions of Sikkim where farmers had to carry inputs manually for a distance to the field because of the undulating terrain.
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Claims 6
Claim · model-written summary
Maize grain yield was comparable between 2 Mg ha−1 broadcast limestone once in three years and 250 kg ha−1 annually in furrows.
- Treatment
- 2 Mg ha−1 limestone was broadcast once in three yearse0
- Outcome
- yield of maize graine0
- Direction
- comparablee0
- Comparator
- 250 kg ha−1 applied every year in furrowse0
- Setting
- Sikkimt1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield of maize grain was comparable when 2 Mg ha−1 limestone was broadcast once in three years and 250 kg ha−1 applied every year in furrows.”
t1“Sikkim”
Claim · model-written summary
Annual lower-dose furrow limestone slowly decreased soil exchangeable acidity and Al3+.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower dose in furrows could decrease slowly the exchangeable acidity and Al3+”
t0“Maize”
Claim · model-written summary
Annual lower-dose furrow limestone increased soil pH and exchangeable Ca2+ + Mg2+.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower dose in furrows could decrease slowly the exchangeable acidity and Al3+ and increase soil pH and exchangeable Ca2+ + Mg2+”
t0“Maize”
Claim · model-written summary
The higher broadcast dose showed the reverse soil-chemistry trend over time.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the higher dose (broadcast) showed the reverse trend with passage of time.”
t0“Maize”
Claim · model-written summary
Limestone improved maize calcium and magnesium nutrition.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Limestone application improved the Ca and Mg nutrition of plant.”
t0“Maize”
Claim · model-written summary
The authors favor furrow application for Sikkim conditions.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The furrow application suits social, economical and topographical conditions of Sikkim”
t0“Maize”
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