References
- EB1895. Soil Management for Small Farms (WSU)
- PNW 533. Fertilizing with Manure (WSU)
- EC 628. Soil Sampling for Home Gardens (OSU)
- EC 1478. Soil Test Interpretation Guide (OSU)
- EM 8704. Using Cover Crops in Oregon (OSU)
- EB 1824. Cover Crops for Home Gardens in western Washington and Oregon
- EC 1503. Fertilizing your garden (OSU)