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| Nykänen, Arja; Hakala, Kaija; Halinen, Arja; Hannukkala, Asko; Keskitalo, Marjo; Kirkkari, Anna-Maija; Palojärvi, Ansa; Tolonen, Kaisa; Tontti, Tiina. |
| In a three-year Research program of organic food and farming in Finland there are six projects under theme plant production and soil science. The projects focus on potato and red clover cultivation, waste composts and meat-bone meal as organic fertilizer and on-farm soil quality testing. Preliminary results are now available. |
| Tipo: Other |
Palavras-chave: Crop husbandry. |
| Ano: 2005 |
URL: http://orgprints.org/5213/1/5213.doc |
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| Tontti, Tiina; Nykänen, Arja; Kuisma, Miia. |
| Two field experiments, conventional grass ley and organic grass-clover ley, were established with barley as a nurse crop in spring 2000 and given either low or high fertilization with mineral fertilizer (Mineral) or composts. The compost types were municipal biowaste (Biowaste), biowaste + sewage sludge (BioSludge) and cattle manure (Manure). Plant yields and nitrogen (N) uptakes were measured for three years and efficiency of N utilization was estimated. In single application of compost, the total N was mainly in organic form and less than 10% was in inorganic form. Along with increasing amount of inorganic N applied in compost, the yield, N uptake and N recovery increased during the application year. The highest compost N recovery in the application year... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover. |
| Ano: 2009 |
URL: http://orgprints.org/16627/1/tontti.pdf |
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