Dry weight data were analyzed in R using ANOVA and linear mixed-effect modeling

The grid was placed into a tank just large enough to hold the grid, and 20 L of hydroponic solution was used per tank. Genotypes were randomly assigned to positions in each cone-tainer grid using the sample and matrix functions in R . Aeration was supplied to each tank with an aquarium pump and two …

The first does not adjust for any observable determinants of farmland values

There are three further issues about equation that bear noting. First, it is likely that the error terms are correlated among nearby geographical areas. For example, unobserved soil productivity is likely to be spatially correlated. In this case, the standard OLS formulas for inference are incorrect since the error variance is not spherical. In absence of …

Trained falcons were first introduced as working birds in vineyards to protect the grapes

Despite this, some chemical treatments have been effective. For example, methyl anthranilate, a common food additive, is used as a biodegradable non-toxic bird repellant for grapes and berries. One study showed a decrease in crop loss by 88% to 99% when crops were treated with methyl anthranilate . However, in another study, methyl anthranilate was …