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Abstract

Economics often encourage utilization of compost without a curing period. Tomato (Lycopersicon esculentum, Mill.) transplants were set into field plots 4,11, 19, 35, and 70 days after incorporation of uncured biosolids/yard trimming compost at 135 tha1, Dry weights of plants in control (nocompost) plots from the first transplant date and fresh weights of plants from the last transplant date were greater than from compost plots. Fruit yields of control and compost plots were similar. In greenhouse flats, mean days to emergence were similar between treatments, and total emergence percentages in compost were lower than in a sandy field soil, but similar to a commercial peat-lite germination mix, Seedling shoot weights were similar between treatments, but root weight was lower in the peat-lite mix than in compost or soil. In general, utilization of the uncured compost was not detrimental to tomato plant growth or fruit yields.

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