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| Nielsen, Dr. Niels Erik; Thomsen, Senior scientist Ingrid Kaag; Berntsen, Scientist Jørgen. |
| It appears that the growth of barley seedlings during spring is restricted by moderate internal deficiency of phosphorus (P) and potassium (K) in most cases. This agrees with the well-known increases of growth and grain yields if P and K fertilizer placement is used in spring barley growing. It is also evident from our earlier work that barley cultivars may differ in the P acquisition from soil (Gahoonia and Nielsen, 2004; Gahoonia and Nielsen, 2003). The existence of cereal varieties differing in the efficiency in P uptake from soil suggests that more nutrient efficient varieties can be identified among the existing varieties. The aim of this work was to study differences between selected barley cultivars in their soil-P and soil-K acquisition to... |
| Tipo: Working paper |
Palavras-chave: Cereals; Pulses and oilseeds. |
| Ano: 2003 |
URL: http://orgprints.org/1453/1/BAR%2DOF%2DNEN%2DO3%2Dpaper1.doc |
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| Thomsen, Senior scientist Ingrid Kaag. |
| Jordløsning i vækstsæsonen kan medvirke til, at organisk stof placeret i aggregater frigøres og omsættes. Derved kan der ske en mineralisering af kvælstof, således at mængden af plantetilgængeligt kvælstof i jorden øges. Dette er baggrunden for undersøgelser vedr. anvendelse af jordløsning som styringsredskab til at skabe bedre overensstemmelse mellem kvælstofmineralisering og planternes behov for kvælstof. Her præsenteres resultater fra et forsøg med jordløsning i vinterhvede. Hveden var sået på dobbelt rækkeafstand på parceller, hvor der siden 1987 er blevet opbygget forskellige niveauer af organisk stof i jorden ved tilførsler af gylle og halm samt dyrkning af efterafgrøder. Jordløsningen blev foretaget i maj med enten en radrenser, rækkefræser eller... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover. |
| Ano: 2003 |
URL: http://orgprints.org/1416/1/abenhus2003.ppt |
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| Pedersen, Scientist Lene; Thomsen, Senior scientist Ingrid Kaag. |
| Introduction The bread making potential of wheat flour is largely related to the gluten protein. It has until now been stated that the genotype (cultivar) is the most important factor for the gluten properties and protein composition, whereas environmental factor like fertilisation has a great impact on the quantity of gluten proteins (Daniel and Triboi, 2000). In organic farming, there seems to be a stronger interaction between genotype and environment on the gluten properties and the baking properties, due to the restricted nutrient availability. Therefore, the influence of environmental factors, and especially the influence of fertilisation in organic farming must be investigated in order to grow organic bread wheat with good quality. The importance o... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2003 |
URL: http://orgprints.org/1415/1/NIMAB_Lene.ppt |
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