Percent increase in stem diameter of magnolia grandiflora as influenced by planting date, mulching, and fertilizer placement.
Sampling date | Planting time | Mulch | Fertilizer placement | |||||
---|---|---|---|---|---|---|---|---|
fall | spring | with | without | none | top | backfill | bottom | |
12/80 | 25.1 | 34.6**z | 33.1 | 26.68*x | 24.1ay | 26.4ab | 33.6ab | 35.3b |
5/82 | 99.6 | 119.6** | 121.7 | 97.5** | 93.6a | 109.3ab | 119.2b | 116.2b |