Modern varieties of winter rapeseed require a lot of nitrogen in early spring. In cool, moist and dry soils, the N mineralisation can be inhibited, which leads to an insufficient N supply and yield losses.
Šķīdums
Fast releasing fertilizer application in autumn and spring can perfectly complement the basic fertilisation (applied via crop rotation and manure before sowing) and prevent a lack of nitrogen in spring.
Apraksts
Optimal fertilisation ensures that the current rapeseed varieties and reach their full yield potential.
Practical recommendation
• In conventional cultivation, the nitrogen uptake of winter oilseed rape amounts to 140 kg N per ha for a yield expectation of 35 dt per ha. In organic agriculture, about 100 kg suffice for a yield expectation of 20-25 dt.
• The ideal time for cultivating oilseed rape is after grass-clover or legumes. After grains, apply about 30 tonnes per ha of manure or manure compost before cultivating rapeseed.
• In dry conditions in spring, an early single application of nitrogen is preferable to two smaller applications. In the case of slurry with a low N content, two applications are often required because maximum of 40 m3 of slurry can be applied at once. Regularly analyse the N content of slurry (regular content: 1 kg of N per m3 of slurry or tonne of manure, respectively; range: 0, 3 kg N per m3 for cow slurry to 3 kg N per m3 for pig slurry). The N contents of commercial fertiliser and liquid digestate are disclosed by the suppliers.
• On farms without livestock, one dose of organic commercial fertiliser is applied in early spring.
Lai atvērtu šo multivides saturu, vispirms tas jāaktivizē.
Aktivizējot šo multivides saturu, jūsu pārlūkprogramma izveido tiešu savienojumu ar trešo pušu pakalpojumu sniedzēju (Disqus) serveriem. Lai iegūtu vairāk informācijas, lūdzu, skatiet mūsu privātuma politiku.
Disqus
Lai atvērtu šo multivides saturu, vispirms tas jāaktivizē.
Aktivizējot šo multivides saturu, jūsu pārlūkprogramma izveido tiešu savienojumu ar trešo pušu pakalpojumu sniedzēju (Disqus) serveriem. Lai iegūtu vairāk informācijas, lūdzu, skatiet mūsu privātuma politiku.
Aktivizēt