Effects of reduced pesticide use on flora and fauna in agricultural fields

Table 5.1.
Results of tests of effects of reduced dosages on the weed density, species richness, efficiency and yield in spring barley and winter wheat. Grey areas indicate factors not included in the full model. Statistical significance is indicated as follows: +: 0.05£ p<0.10, *: 0.01£ p<0.05, **: 0.001£ p<0.01 and ***: p<0.001.
Results of tests of effects of reduced dosages on the weed density, species richness, efficiency and yield in spring barley and winter wheat. Grey areas indicate factors not included in the full model. Statistical significance is indicated as follows: +: 0.05£ p<0.10, *: 0.01£ p<0.05, **: 0.001£ p<0.01 and ***: p<0.001.
   

Explanatory factors

Spring barley

Winter wheat

Weed density

Species richness

Efficiency

Yield

Weed density

Species richness

Efficiency

Yield

Weed density before

***

 

 

 

***

 

 

 

Weed density after

 

***

 

 

 

***

 

 

Species richness before

 

***

 

 

 

***

 

 

Species richness after

 

 

 

 

 

 

 

 

Efficiency

 

 

 

 

 

 

 

+

Dosage

***

 

***

***

***

 

***

+

Farm

 

 

 

 

**

+

***

 

Year

+

 

 

 

 

 

 

 

Dosage´ Farm

 

**

 

 

 

***

 

+

Dosage´ Year

 

+

 

 

 

 

 

*

Farm´ Year

***

***

***

***

***

***

***

**

Dosage´ Farm´ Year

***

 

***

***

**

 

 

***

Block´ Farm´ Year

***

 

*

***

 

 

 

***