Second season irrigation significantly increased straw yield.

irrigation · yield · Triticum aestivum (wheat)Positive and negative results

797 papers in the same direction as this claim · 184 in the opposite direction · 7 reporting no difference from an alternative

1. positive
   Alternating crops raised dryland wheat yield with sweep tillage to 2,250 kg/ha versus 2,080 kg/ha on continuous dryland plots.

   Tillage Effects on Winter Wheat Production where the Irrigated and Dryland Crops are Alternated¹ · 1977 · compared with continuous dryland plots

   Same directionCited by this paper

2. positive
   Irrigation from the beginning of tillering to the heading stage produced more effective spikes than irrigation in any other period.

   Optimum irrigation period for grain production in spring wheat · 1992 · compared with irrigation during any other period

   Same directionCites this paper

3. negative
   Minimum irrigation lowered average winter wheat yield by 14% versus full irrigation.

   Performance of Double‐Cropped Winter Wheat–Summer Maize under Minimum Irrigation in the North China Plain · 2006 · compared with fully irrigated treatment (FI)

   Opposite direction

4. no effect
   Moderately saline water substituted for good quality water during part of the season maintained total wheat grain yield.

   Time of Salt Stress Affects Growth and Yield Components of Irrigated Wheat · 1994 · compared with good quality water

   Opposite direction

5. negative
   Saline irrigation caused soil salinization and reduced wheat growth and yield.

   Effect of Straw Biochar on Soil Properties and Wheat Production under Saline Water Irrigation · 2019

   Opposite direction

6. negative
   Deficit irrigation in salt-affected soil reduced wheat productivity.

   Collaborative Impact of Compost and Beneficial Rhizobacteria on Soil Properties, Physiological Attributes, and Productivity of Wheat Subjected to Deficit Irrigation in Salt Affected Soil · 2022

   Opposite direction

7. negative
   Wastewater irrigation decreased plant height, leaf area and grain yield in wheat.

   Effect of Wastewater Irrigation on Photosynthesis, Growth, and Anatomical Features of Two Wheat Cultivars (Triticum aestivum L.) · 2020

   Opposite direction

8. no effect
   An additional 33 mm of irrigation did not increase grain yield.

   Source–sink balance and manipulating sink–source relations of wheat indicate that the yield potential of wheat is sink-limited in high-rainfall zones · 2010

   Opposite direction

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