Management › Residue and mulch management › Residues → Properties › Biology

Residue incorporation → Yield

Consistent result

88 %

of 16 studies with a clear result report a significant increase

+9 %

typical change (14 studies with numbers)

studies · 17 findings

Count each study by

16 studies · 17 findings

What the studies show

14 of 16 studies report a significant increase (88 %, 95 % confidence interval 64–97 %).

By the direction of each study’s results, significant or not: 15 of 16 studies with a direction point up (94 %, 95 % confidence interval 72–99 %; sign test p < 0.001).

↑ 14 increase
↓ 1 decrease
= 1 no effect

How large: typically +9 % (middle half +5 % to +22 %), from 14 studies with numbers
Basis: 16 studies, 17 findings; 0 entered by hand, 16 read by the library

Every study counts once, however many findings it reports: one with 40 sampling dates does not outvote ten others. A study with a significant increase and decrease (say at different depths) counts as "both". A first synthesis for orientation, not a substitute for a systematic review.

Where the studies are

goes up
stays the same
goes down
both ways

Through the soil profile

Each layer on its own: a study that reports the topsoil and the subsoil counts in both. Choose a layer to see what goes with it.

goes up
stays the same
goes down
both ways

In layers of unstated depth, yield goes up in 88 % of the studies under residue incorporation, stays the same in 6 % and goes down in 6 %.

What makes a difference

The conditions whose levels differ most clearly, each with the outcome that differs most between its levels of at least 10 study layers. Choose a layer in the profile to see them for that layer alone, or a level here to filter by it.

Testing every condition on every study layer…

Along the conditions

Testing every condition on every study layer…