Table 7

Effects of cover-crop mixes on vine leaf N content, May 2001.

Nitrate-N (petiole) (mg/L)Total N (blade) (%)
aMeans followed by the same letter in each column are not significantly different (LSD, p < 0.05).
Native grass28.0ca0.92d
Green manure693.3a1.40a
Clovers94.5bc1.05cd
Cereals321.5b1.22b
Disked303.5b1.15bc