Publication Details |
| Category | Text Publication |
| Reference Category | Report articles |
| Document | publication document |
| Title (Primary) | Ertragsentwicklung sowie Richtwerte für den C- und N-Gehalt ackerbaulich genutzter Böden |
| Title (Secondary) | Einfluß der Landnutzung auf Landschaftshaushalt und Biodiversität in agrarisch dominierten Räumen |
| Author | Körschens, M. |
| Publisher | Mühle, H. |
| Source Titel | UFZ-Bericht |
| Year | 2001 |
| Department | BOFO |
| Volume | 16/2001 |
| Page From | 81 |
| Page To | 96 |
| Language | deutsch |
| Abstract | Yield development and target values for the C and N levels of agricultural soil Soil organic matter (SOM) is the main preconditio111 for soil formation, soil fertility and yields. The aim of sustainable land use is to produce increasingly high yields to safegruard the nutrition of the permanent world's permanently growing population. The results of the Bad Lauchstadt Static Fertilization Experiment over the last 50 years are summarized In the period studied, the yields of winter wheat increased by approx. 60 dt/hectare, i.e. 150 %. The reasons are manifold A decisive role is played by the progress made in crop breeding, especially concerning winter wheat. Other factors include improvements in plant protection in the mid-1980s, higher mineral N-fertilization, and better control of the fertilization regime. The yields of spring barley have increased by 1 dt/ha annually, amounting to a rise of approx. 50 dt/ha during the entire period In contrast to cereals, the yields of sugar beet or sugar are significantly lower. In 1950, sugar yields amounted to JOO dt/ha, and only began increasing to a significantly higher level in 1993. The yields of potato starch have increased by 44 kg/ha annually; i.e. approx. 20 dt/ha within the last 50 years. Comparison between the optimum exclusively mineral fertilization and the optimum combination between organic and mineral fertilization, i.e. the soil-improving effect of SOM, amounts on average to 3 %. The results of the carbon and nitrogen dynamics in this experiment as well as nitrogen and carbon balances are shown and optimum values are derived for decomposable carbon and nitrogen for arable soils. C extractable in hot water has proved to be an appropriate criterion for calculating the decomposable C and thus for N release from soil. These results indicate that "ecological agriculture" is no alternative to "integrated plant production". |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=19670 |
| Körschens, M. (2001): Ertragsentwicklung sowie Richtwerte für den C- und N-Gehalt ackerbaulich genutzter Böden In: Mühle, H. (Hrsg.) Einfluß der Landnutzung auf Landschaftshaushalt und Biodiversität in agrarisch dominierten Räumen UFZ-Bericht 16/2001 UFZ Leipzig-Halle GmbH, Leipzig, S. 81 - 96 |
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