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In temperate climates with surplus precipitation and low temperatures during autumn and winter, nitrate catch crops have become crucial in reducing nitrate leaching losses. Preferably, the N retained by the catch crop should remain in the soil and become available to the next main crop. Fodder radish (Raphanus sativus, L.) has emerged as a promising nitrate catch crop in cereal cropping, although...
Thirty-seven arable soil samples (0–20cm depth) ranging in clay content from 4 to 40% and in C to N ratio from 8 to 20 were incubated at −100hPa and 20°C for 238days. The CO 2 -C evolved during days 105–147 and days 0–238 was related to the soil C to N ratio by a power function. We hypothesized the existence of a threshold value for the soil C to N ratio below which CO 2 -C evolution...
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