Paper · 2020 · Carbon Management

Crop residue management to reduce GHG emissions and weed infestation in Central India through mechanized farm operations

C. R. Chethan; P. K. Singh; R. P. Dubey; et al.

9
claims
12
verbatim quotes
14
citations
1
research areas
—
Not open access

Abstract

Crop residue burning is a major issue in farmers’ fields of Indo-Gangetic Plain and Central India. It emits air pollutants and GHGs into the atmosphere, adversely affects soil, crop yields, human health and the environment. Weed infestation is also a major problem and affects overall crop yield. Therefore, a 2-year farm experiment was conducted at farmers’ fields with three treatments – current farmers’ practice (FP), conservation agriculture with improved weed management (CAW) and conservation agriculture without any weed management (CA) – from kharif (monsoon) 2017 to summer 2019 to manage crop residue and weeds. A happy seeder and tractor-operated boom sprayer were also introduced in CA and CAW. Total 51 t of crop residue was generated from 2 ha of rice-wheat-greengram cultivation area. In FP this crop residue was burned, but it was utilized as mulch in CA and CAW, thus, emission of 34,400 kg CO2e was avoided and energy potential of 100.1 × 104 MJ was created. The CAW produced percent higher crop yield of 21, 22.5 and 44.4%in first year and 20.6, 20 and 30% in second year of crop cycle respectively in rice (4.6 & 4.1 t ha−1), wheat (4.9 & 4.1 t ha−1) and greengram (1.3 & 1.3 t ha−1).

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Claims 9

Observationobservedoriginal resultmeasured

Claim · model-written summary

The rice-wheat-greengram area generated 51 t of crop residue.

Taxon
rice-wheat-greengrame0
Outcome
crop residuee0
Value
51 te0
Setting
2 ha of rice-wheat-greengram cultivation areae0

Verbatim

t0

“Crop residue management”

✓ located verbatim in the source · title, characters 0–23 · show in text ↑
e0

“Total 51 t of crop residue was generated from 2 ha of rice-wheat-greengram cultivation area.”

✓ located verbatim in the source · abstract, characters 708–800 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Using crop residue as mulch in CA and CAW avoided 34,400 kg CO2e emissions relative to burning in FP.

Taxon
Cropt0
Treatment
CA and CAWe0
Outcome
emissione0
Direction
avoidede0
Value
34,400 kg CO2ee0
Comparator
FPe0

Verbatim

t0

“Crop residue management”

✓ located verbatim in the source · title, characters 0–23 · show in text ↑
e0

“In FP this crop residue was burned, but it was utilized as mulch in CA and CAW, thus, emission of 34,400 kg CO2e was avoided and energy potential of 100.1 × 104 MJ was created.”

✓ located verbatim in the source · abstract, characters 801–977 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Residue mulching created an energy potential of 100.1 × 104 MJ.

Taxon
Cropt0
Treatment
CA and CAWe0
Outcome
energy potentiale0
Direction
createde0
Value
100.1 × 104 MJe0
Comparator
FPe0

Verbatim

t0

“Crop residue management”

✓ located verbatim in the source · title, characters 0–23 · show in text ↑
e0

“In FP this crop residue was burned, but it was utilized as mulch in CA and CAW, thus, emission of 34,400 kg CO2e was avoided and energy potential of 100.1 × 104 MJ was created.”

✓ located verbatim in the source · abstract, characters 801–977 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CAW increased rice yield by 21 in the first year.

Treatment
CAWe0
Outcome
crop yielde0
Direction
highere0
Value
21e0
Qualifier
first yeare0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The CAW produced percent higher crop yield of 21, 22.5 and 44.4%in first year and 20.6, 20 and 30% in second year of crop cycle respectively in rice (4.6 & 4.1 t ha−1), wheat (4.9 & 4.1 t ha−1) and greengram (1.3 & 1.3 t ha−1).”

✓ located verbatim in the source · abstract, characters 978–1205 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CAW increased rice yield by 20.6 in the second year.

Treatment
CAWe0
Outcome
crop yielde0
Direction
highere0
Value
20.6e0
Qualifier
second yeare0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The CAW produced percent higher crop yield of 21, 22.5 and 44.4%in first year and 20.6, 20 and 30% in second year of crop cycle respectively in rice (4.6 & 4.1 t ha−1), wheat (4.9 & 4.1 t ha−1) and greengram (1.3 & 1.3 t ha−1).”

✓ located verbatim in the source · abstract, characters 978–1205 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CAW increased wheat yield by 22.5 in the first year.

Treatment
CAWe0
Outcome
crop yielde0
Direction
highere0
Value
22.5e0
Qualifier
first yeare0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The CAW produced percent higher crop yield of 21, 22.5 and 44.4%in first year and 20.6, 20 and 30% in second year of crop cycle respectively in rice (4.6 & 4.1 t ha−1), wheat (4.9 & 4.1 t ha−1) and greengram (1.3 & 1.3 t ha−1).”

✓ located verbatim in the source · abstract, characters 978–1205 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CAW increased wheat yield by 20 in the second year.

Treatment
CAWe0
Outcome
crop yielde0
Direction
highere0
Value
20e0
Qualifier
second yeare0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The CAW produced percent higher crop yield of 21, 22.5 and 44.4%in first year and 20.6, 20 and 30% in second year of crop cycle respectively in rice (4.6 & 4.1 t ha−1), wheat (4.9 & 4.1 t ha−1) and greengram (1.3 & 1.3 t ha−1).”

✓ located verbatim in the source · abstract, characters 978–1205 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CAW increased greengram yield by 44.4% in the first year.

Treatment
CAWe0
Outcome
crop yielde0
Direction
highere0
Value
44.4%e0
Qualifier
first yeare0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna radiata var. radiata
Vigna radiata var. radiata · Taxon · picture of the speciesIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The CAW produced percent higher crop yield of 21, 22.5 and 44.4%in first year and 20.6, 20 and 30% in second year of crop cycle respectively in rice (4.6 & 4.1 t ha−1), wheat (4.9 & 4.1 t ha−1) and greengram (1.3 & 1.3 t ha−1).”

✓ located verbatim in the source · abstract, characters 978–1205 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CAW increased greengram yield by 30% in the second year.

Treatment
CAWe0
Outcome
crop yielde0
Direction
highere0
Value
30%e0
Qualifier
second yeare0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Vigna radiata var. radiata
Vigna radiata var. radiata · Taxon · picture of the speciesIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The CAW produced percent higher crop yield of 21, 22.5 and 44.4%in first year and 20.6, 20 and 30% in second year of crop cycle respectively in rice (4.6 & 4.1 t ha−1), wheat (4.9 & 4.1 t ha−1) and greengram (1.3 & 1.3 t ha−1).”

✓ located verbatim in the source · abstract, characters 978–1205 · show in text ↑

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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.