Adding the highest compost rate limited barley yield reduction to 5.9% relative to control.

fertilization · yield · Hordeum vulgare (barley)Positive and negative results

472 papers in the same direction as this claim · 66 in the opposite direction · 11 reporting no difference from an alternative

1. no effect
   Neither phosphorus application nor mycorrhizal inoculation increased tiller number.

   Effects of Arbuscular Mycorrhizal Fungi and Phosphorus Fertilization on Growth and Nutrient Uptake of Barley Grown on Soils with Different Levels of Salts · 2003

   Opposite direction

2. negative
   N fertilizer reduced relative yield totals.

   Root and Shoot Interactions Between Barley and Field Beans When Intercropped · 1982

   Opposite direction

3. negative
   Nitrogen fertilizer alone did not raise yield on barley residue to yield on pulse residue.

   YIELD EFFECT OF PULSES ON SUBSEQUENT CEREAL CROPS IN THE NORTHERN PRAIRIES · 1990 · compared with pulse residue

   Opposite direction

4. no effect
   Incorporation timing of feedlot cattle manure had no impact on soil or crop performance.

   Effect of rate, frequency and incorporation of feedlot cattle manure on soil nitrogen availability, crop performance and nitrogen use efficiency in east-central Saskatchewan · 2004

   Opposite direction

5. no effect
   Cropping without nutrients did not significantly improve productivity of severely eroded land.

   EFFECTIVENESS OF MANURE AND COMMERCIAL FERTILIZER IN RESTORING PRODUCTIVITY OF AN ARTIFICIALLY ERODED DARK BROWN CHERNOZEMIC SOIL UNDER DRYLAND CONDITIONS · 1988

   Opposite direction

6. negative
   Manure lowered barley seed yield relative to mineral fertilizer.

   Manure, Tillage, and Crop Rotation: Effects on Residual Weed Interference in Spring Barley Cropping Systems · 1998 · compared with mineral fertilizer

   Opposite direction

7. no effect
   Nitrogen rate did not alter leaf and primary tiller coordination in the remaining barley cultivars.

   The influence of fertiliser nitrogen application on development and number of reproductive primordia in field-grown two- and six-rowed barleys · 2004

   Opposite direction

8. no effect
   Nitrogen topdressing did not affect tiller number at the end of shooting or harvest.

   Tillering Dynamics of Water Barley as Influenced by Cultivar and Nitrogen Fertilizer: A Field Study¹ · 1984

   Opposite direction

541 papers more in this group