Effects of animal manure application on soil environment in cabbage [Brassica oleracea capitata] field
2009
Murakami, H.(National Inst. of Vegetable and Tea Science, Tsukuba, Ibaraki (Japan)) | Kuroyanagi, Y.
The continuous application of animal manure, e.g. cattle manure, dried poultry feces or dried swine feces, brought yields enough to some extent in cabbage fields, when the application rate of the materials was based on the mineralization rate of nitrogen in the manure. On the other hand, some nutrients, e.g. nitrogen, phosphorus, potassium, sodium, zinc, accumulated in the soil because of the continuous and abundant application. Moreover, the imbalance of exchangeable cations in the soil and the leaching of various elements, e.g. nitrogen as nitrate ions, potassium and sodium were detected. These elements brought the high EC value of the soil and the leaching water. When the appropriate combination of several kinds of animal manure and the organic materials were recommended, the appropriate application rate should be calculated according to the nutrient content in the soil and the absorption rate of cabbage. Then an adequate yield of cabbage could be maintained and the soil environment could be preserved.
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