Abstract
Studies on the interaction effects of tillage practices and irrigation regimes on water use, seed yield and water use efficiency of sunflower (Helianthus annuus L.) in sandy clay loam Alfisol under rice fallows revealed that water retention and availability in soil improved up to 30 cm depth in tractor-drawn disc plough or MB plough tillage (deep tillage) treatments while it was restricted to 15 cm in bullock-drawn desi plough tillage (shallow tillage). Tillage with tractor-drawn disc plough + rotavator (Deep-fine tillage) gave significantly higher seed yield (1311 kg ha−1) over tractor drawn MB plough + tractor drawn cultivator - deep tillage (1172 kg ha−1), bullock-drawn desi plough + power tiller-operated rotavator - shallow fine tillage (1054 kg ha−1), bullock-drawn desi plough + bullock-drawn cultivator - shallow tillage (931 kg ha−1). Irrigation regime at IW/CPE = 1.2 recorded higher seed yield than IW/CPE = 0.6, 0.8 and 1.0. Water use (ETa) by sunflower increased with increase in intensity of tillage and irrigation. The WUE was higher in deep tillage practices and in irrigation regime of IW/CPE = 0.8. Deep tillage, besides saving 18% irrigation water, resulted in about 24% higher sunflower seed yield compared with shallow tillage.
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Claims 8
Claim · model-written summary
Deep tillage improved soil water retention to 30 cm versus 15 cm under shallow tillage.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- deep tillagee0
- Outcome
- water retention and availability in soile0
- Direction
- improvede0
- Value
- 30 cme0
- Qualifier
- 15 cme0
- Comparator
- shallow tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water retention and availability in soil improved up to 30 cm depth in tractor-drawn disc plough or MB plough tillage (deep tillage) treatments while it was restricted to 15 cm in bullock-drawn desi plough tillage (shallow tillage)”
t0“sunflower”
Claim · model-written summary
Deep fine tillage yielded 1311 kg ha−1, significantly above other tillages.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Deep-fine tillagee0
- Outcome
- seed yielde0
- Direction
- highere0
- Value
- 1311 kg ha−1e0
- Comparator
- deep tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Deep-fine tillage) gave significantly higher seed yield (1311 kg ha−1) over tractor drawn MB plough + tractor drawn cultivator - deep tillage (1172 kg ha−1), bullock-drawn desi plough + power tiller-operated rotavator - shallow fine tillage (1054 kg ha−1), bullock-drawn desi plough + bullock-drawn cultivator - shallow tillage (931 kg ha−1)”
t0“sunflower”
Claim · model-written summary
IW/CPE 1.2 yielded more seed than lower irrigation regimes.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- IW/CPE = 1.2e0
- Outcome
- seed yielde0
- Direction
- highere0
- Comparator
- IW/CPE = 0.6, 0.8 and 1.0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation regime at IW/CPE = 1.2 recorded higher seed yield than IW/CPE = 0.6, 0.8 and 1.0”
t0“sunflower”
Claim · model-written summary
Sunflower water use rose with tillage and irrigation intensity.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- intensity of tillage and irrigatione0
- Outcome
- Water use (ETa)e0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water use (ETa) by sunflower increased with increase in intensity of tillage and irrigation”
Claim · model-written summary
Water use efficiency was higher with deep tillage.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- deep tillage practicese0
- Outcome
- WUEe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WUE was higher in deep tillage practices and in irrigation regime of IW/CPE = 0.8”
t0“sunflower”
Claim · model-written summary
Water use efficiency was higher at IW/CPE 0.8.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- IW/CPE = 0.8e0
- Outcome
- WUEe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WUE was higher in deep tillage practices and in irrigation regime of IW/CPE = 0.8”
t0“sunflower”
Claim · model-written summary
Deep tillage saved 18% irrigation water relative to shallow tillage.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Deep tillagee0
- Outcome
- irrigation watere0
- Direction
- savinge0
- Value
- 18%e0
- Comparator
- shallow tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Deep tillage, besides saving 18% irrigation water, resulted in about 24% higher sunflower seed yield compared with shallow tillage”
Claim · model-written summary
Deep tillage raised sunflower seed yield by about 24%.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Deep tillagee0
- Outcome
- sunflower seed yielde0
- Direction
- highere0
- Value
- 24%e0
- Comparator
- shallow tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Deep tillage, besides saving 18% irrigation water, resulted in about 24% higher sunflower seed yield compared with shallow tillage”
The same questions in other papers
tillage · yield · Helianthus annuus (common sunflower)Positive and negative results
49 papers in the same direction as this paper · 16 in the opposite direction · 4 reporting no difference from an alternative
- no effect
- no effect
- negative
66 papers more in this group
See all 70 papers →tillage · physiology: water · Helianthus annuus (common sunflower)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.