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Organic fertilizers in ecological farming. Part 2: slurry, trade products as well as estimate for N supply.

机译:生态农业中的有机肥料。第2部分:浆料,贸易产品以及氮供应的估算。

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摘要

Most slurry used on German potato farms is from cattle and data are presented of its effect on crop yield and quality. Optimum application rates for cattle slurry are between 15 and 35 m3/ha. The effects of other organic fertilizers such as bonemeal, poultry droppings, or crop resides are also discussed. Calculations are presented of N mineralization rates from 14 organic fertilizers. Tables are presented of DM, N, P and K levels in 42 organic fertilizers..
机译:德国马铃薯农场使用的大多数泥浆来自牛,并提供了有关其对作物产量和品质影响的数据。牛粪的最佳施用量为15至35 m3 / ha。还讨论了其他有机肥料(如骨粉,家禽粪便或农作物)的影响。计算出了14种有机肥料的氮矿化率。下表列出了42种有机肥料中的DM,N,P和K含量。

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