Search results for "lannoitus"
showing 4 items of 4 documents
Can foliar-applied nutrients improve caraway (Carum carvi L.) seed oil composition?
2021
Caraway seeds contain between 0.5–7% essential oil, rich in monoterpenes that have a characteristic aroma and chemical properties. Caraway oil has several bioactive compounds that are of industrial importance, particularly for pharmaceutical and health care products. Carvone and limonene are the main terpenes present in caraway oil, which along with some unique fatty acids (i.e. petroselinic acid) determine caraway (Carum carvi L.) oil quality. Both terpenes are important raw materials for industrial applications and their concentration influences the price of caraway seed and oil, hence there is need for identifying management practices that may increase the concentration of these and othe…
Socio-cultural lock-ins and the difficulty of sustainability transition in fertilization : response to Struckman
2021
This commentary discusses the socio-cultural context of farming and proposes ways to break related lock-ins in the context of sustainability transition research. To be able to change farming practices and design policies to promote the changes, it is essential to understand what actually needs to change. Do we need to change the ways farmers think, the ways that food markets operate, the requirements of plant varieties or the requirements related to protecting water quality? In a complex situation the needed change emerges from the intertwinement of many different issues, which simultaneously work to create the locked-in situation. A focus on people and their practices provides a good start…
Out of sight : Profiling soil characteristics, nutrients and bacterial communities affected by organic amendments down to one meter in a long-term ma…
2019
Common soil characteristics, nutrients and microbial activity at deeper soil depths are topics seldom covered in agricultural studies. Biogeochemical cycles in deep soils are not yet fully understood. This study investigates the effect of different mineral and organic fertilisation on soil organic matter dynamics, nutrients and bacterial community composition in the first meter of the soil profiles in the long-term maize cropping system experiment Tetto Frati, near the Po River in northern Italy. The following treatments have been applied since 1992: 1) crop residue removal (CRR), 2) crop residue incorporation (CRI), 3) crop residue removal with bovine slurry fertilisation (SLU), 4) crop re…
Kasvien kasvun ja laadun vertailu hydroponic- ja aquaponic-systeemeissä
2017
Yhdistetystä kalanviljelystä ja kasvien vesiviljelystä eli aquaponic-viljelystä lupaillaan helpotusta ruoantuotannon globaaleihin ongelmiin sillä se vähentää vesiviljelyyn tarvittavien ravinteiden määrää hyödyntäen kalojen jätösten ravinteet kasvisadon tuottamiseen. Aquaponic-viljelyllä on siis potentiaalia lisätä ruoantuotannon tehokkuutta, mutta sen laajamittaista käyttöönottoa hidastavat viljelyn monimutkaisuus sekä korkeat aloituskustannukset. Kaupallinen tehotuotanto on toistaiseksi ollut vaatimatonta, näin ollen aquaponicsin taloudellisesta tuottavuudesta on vähäisesti tutkimustuloksia. Tutkimuksemme tarkoitus oli tuottaa lisää tietoa kasvien kasvusta ja laadusta aquaponic-systeemissä…