Abstract
To investigate the effect of mulch and different cultivation methods on the quantitative and qualitative yield of oil sunflower (Helianthus annuus L.) in Ahvaz climate, a factorial experiment in randomized complete blocks with three replications in the 2017-2018 crop year was in the research farm of Agricultural Sciences and Natural Resources University of Khuzestan. The first factor includes different types of mulch in five levels (non-application, wheat straw, white plastic, live mulch (mung bean cultivation), and black plastic) and the second factor includes three-level cultivation method (on a flat surface, ridge cultivation, and inside the furrow cultivation). The results showed that in the flat surface and on the ridge, black plastic produced the highest amount of chlorophyll a, b, and In the inside the furrow, the highest chlorophyll a was obtained in the application of living mulch. The highest grain yield and oil yield were obtained from the interaction of wheat straw mulch × in the furrow and wheat straw mulch on the ridge. In addition, the highest harvest index was obtained in the treatment of white plastic mulch on a flat surface with an average of 51.85%. In general, it can be said that the treatment of wheat straw and straw × in the inside the furrow and wheat straw × on the ridge were superior in terms of quantitative and qualitative performance.
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Claims 6
Claim · model-written summary
Black plastic mulch gave the highest chlorophyll a and b amounts on flat-surface and ridge sunflower plots.
- Taxon
- Helianthus annuus
Helianthus annuuse0 - Treatment
- black plastice1
- Outcome
- amount of chlorophyll a, be1
- Direction
- higheste1
- Qualifier
- in the flat surface and on the ridgee1
- Comparator
- non-application, wheat straw, white plastic, live mulch (mung bean cultivation)e2
- Setting
- Ahvaz climatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“oil sunflower (Helianthus annuus L.) in Ahvaz climate”
e1“in the flat surface and on the ridge, black plastic produced the highest amount of chlorophyll a, b”
e2“non-application, wheat straw, white plastic, live mulch (mung bean cultivation), and black plastic”
Claim · model-written summary
Living mulch gave the highest chlorophyll a inside the furrow.
- Taxon
- Helianthus annuus
Helianthus annuuse0 - Treatment
- living mulche1
- Outcome
- chlorophyll ae1
- Direction
- higheste1
- Qualifier
- In the inside the furrowe1
- Comparator
- non-application, wheat straw, white plastic, live mulch (mung bean cultivation)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“oil sunflower (Helianthus annuus L.) in Ahvaz climate”
e1“In the inside the furrow, the highest chlorophyll a was obtained in the application of living mulch”
e2“non-application, wheat straw, white plastic, live mulch (mung bean cultivation), and black plastic”
Claim · model-written summary
Wheat straw mulch in the furrow gave the highest grain and oil yield.
- Taxon
- Helianthus annuus
Helianthus annuuse0 - Treatment
- wheat straw mulch × in the furrowe1
- Outcome
- grain yield and oil yielde1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“oil sunflower (Helianthus annuus L.) in Ahvaz climate”
e1“The highest grain yield and oil yield were obtained from the interaction of wheat straw mulch × in the furrow and wheat straw mulch on the ridge”
Claim · model-written summary
Wheat straw mulch on the ridge gave the highest grain and oil yield.
- Taxon
- Helianthus annuus
Helianthus annuuse0 - Treatment
- wheat straw mulch on the ridgee1
- Outcome
- grain yield and oil yielde1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“oil sunflower (Helianthus annuus L.) in Ahvaz climate”
e1“The highest grain yield and oil yield were obtained from the interaction of wheat straw mulch × in the furrow and wheat straw mulch on the ridge”
Claim · model-written summary
White plastic mulch on a flat surface gave the highest harvest index, 51.85%.
- Taxon
- Helianthus annuus
Helianthus annuuse0 - Treatment
- white plastic mulch on a flat surfacee1
- Outcome
- harvest indexe1
- Direction
- higheste1
- Value
- 51.85%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“oil sunflower (Helianthus annuus L.) in Ahvaz climate”
e1“the highest harvest index was obtained in the treatment of white plastic mulch on a flat surface with an average of 51.85%”
Claim · model-written summary
Wheat straw in the furrow and wheat straw on the ridge were superior in quantitative and qualitative performance.
- Taxon
- Helianthus annuus
Helianthus annuuse0 - Treatment
- straw × in the inside the furrow and wheat straw × on the ridgee1
- Outcome
- quantitative and qualitative performancee1
- Direction
- superiore1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“oil sunflower (Helianthus annuus L.) in Ahvaz climate”
e1“the treatment of wheat straw and straw × in the inside the furrow and wheat straw × on the ridge were superior in terms of quantitative and qualitative performance”
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