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1. WO2020160277 - PAILLIS À BANDES RÉFLÉCHISSANTES ET PROCÉDÉS D'UTILISATION

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CLAIMS

What is claimed is:

1. A mulch film comprising:

a central portion extending in a first direction and having a first side edge and a second side edge, said central portion comprising a reflective material;

a first peripheral portion adjacent the first side edge of the central portion and extending in the first direction; and

a second peripheral portion adjacent the second side edge of the central portion and extending in the first direction;

wherein the first peripheral portion and the second peripheral portion comprise black mulch.

2. The mulch film of claim 1 , comprising a black mulch film extending in the first direction, and comprising the first peripheral portion and the second peripheral portion.

3. The mulch film of claim 2, wherein the central portion comprises a reflective coating on the black mulch film.

4. The mulch film of any one of the preceding claims, wherein the central portion comprises a reflective film or sheet disposed on the black mulch film.

5. The mulch film of any one of the preceding claims, wherein the reflective material has an emissivity of less than about 0.4.

6. The mulch film of any one of the preceding claims wherein the reflective material is white or silver in color.

7. The mulch film of any one of the preceding claims, wherein the reflective material comprises aluminum.

8. The mulch film of any one of the preceding claims, wherein the centralized portion has a width measured orthogonal to the first direction that is at least about 30% to about 50% of a width of the entire mulch film.

9. A method for production of a crop, comprising:

providing a bed of soil having a central raised portion and two shoulder portions;

disposing on the bed of soil the mulch film according to any one of claims 1 to 8, wherein the central portion of the mulch film generally corresponds to the raised portion of the bed, and the first and second peripheral portions of the film generally correspond to the shoulder portions of the bed;

planting a plant into the bed of soil through a hole in the central portion of the mulch film; providing water and sunlight to the plant.

10. The method of claim 9, wherein the soil temperature in the central raised portion of the bed of soil is at least about 3 °C lower than for a similar method using only a black mulch.

1 1. The method of claim 9 or 10, wherein the soil temperature in the shoulder portion of the bed of soil is higher than for a similar method using only a reflective mulch.

12. The method of any one of claims 9 to 1 1 , wherein the duration of heat stress conditions in the soil is reduced, as compared to similar methods utilizing only a black mulch.

13. The method of any one of claims 9 to 12, wherein the method results in an early season fruit yield that is greater than for a similar method utilizing only a black mulch.

14. The method of claim 13, wherein the method results in fruit quality, late season yields, production costs, or combination thereof, that are equal to or better than those resulting from a similar method utilizing only black mulch.

15. The method of any one of claims 9 to 14, resulting in a transplant mortality rate of less than 10%.

16. The method of any one of claims 9 to 15, resulting in a plastic mulch surface temperature that is at least 2 °C lower than a plastic mulch surface temperature resulting from a similar method using only a black mulch film.

17. The method of any one of claims 9 to 16, resulting in a canopy-level air temperature that is at least 2 °C lower than a canopy-level air temperature resulting from a similar method using only a black mulch film.