Excess rains and droughts of the past decade pointed out the poor health and productivity of soils on many local vegetable farms. Coupled with high fuel prices and high fertilizer prices, growers have been eager to improve their soil management efforts. Reduced tillage leads to less fuel use and legume cover crops allow the farmer to grow nitrogen fertilizer, reducing their need for conventional fertilizer and the fuel and labor to apply it.

The Cornell Soil Health Test can be used to determine your field's soil management for percentage of water-stable aggregates. A soil with low % water-stable aggregates has  poor crop emergence, more crusting, more runoff, reduced root growth, increased root diseases, and fewer beneficial microbes to cycle soil nutrients.

Vegetable farms using conventional tillage and few cover crops had an average of just 18% water-stable aggregates, while farms using reduced tillage or extensive cover cropping averaged 36-39%. Innovative growers are now beginning to adopt both strategies to improve soils even more.

In addition, the Cornell Vegetable Program is working with a number of conventional and organic vegetable growers on increasing the use of a wide range of cover crops to fill open niches in rotations to improve soil health and grow nitrogen.

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