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2004, 2005 Results
[3-page, 34K .pdf]
Compost experiment

Martens' Farm, Penn Yan, N.Y.

The purpose of the compost study is to explore effects of various rates and types of compost on crop growth, weed populations and soil properties. The study consists of two parallel experiments. One uses a compost with low C:N ratio (4.0-5.2-2.4) N-P2O5-K2O. The other uses a high C:N ratio compost (1.9-3.6-2.4). Both composts were derived from poultry manure. Each compost was applied in the fall of 2003 onto red clover at rates of 0, 0.75, 1.5, 3, and 6 damp tons/a. Additional compost was applied in spring of 2005 before soybean at the rates of 0, 0.15, 0.3, 0.6 and 1.2 damp tons/a. Plots are 50 by 100 ft. and each treatment is replicated three times. Corn was grown in 2004 and soybean in 2005. Spelt was planted after soybean harvest in 2005.

We are sampling weed density and height, crop production, soil nutrient status and indicators of soil health.


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