Barības vielu aprite kartupeļos nelabvēlīgos laikapstākļos = Potato plant nutrient uptake in unfavourable weather conditions
2023
Rūtenberga-Āva, Anda | Sergejeva, Daiga
In recent years, we are increasingly faced with extreme weather conditions, cold and dry spring, long periods of drought and high temperatures during summer, as well as excessive precipitation after long droughts. When root water supply is limited or transpiration is high, plants start to suffer from drought. Potatoes (Solanum tuberosum) have a very shallow root system and big leaf area and are very susceptible to drought and high temperatures, especially during tuber initiation, which can result in limited foliage and plant development, fewer tubers, lower yield, and quality. Recent years with dry and hot periods made us think about the necessity to choose a drought resistant potato varieties and the most appropriate fertilization technology. In conditions of prolonged drought, it is necessary to think about additional provision of plants with nutrients using leaf fertilizers in order to reduce plant stress and to insure the nutrient uptake. One of the most important elements for ensuring photosynthesis process is iron, which affects both the transport of nutrients and the formation of chlorophyll in the leaves of the plant. If the iron is blocked in potato leaves, plants show chlorosis and stop photosynthesis, which can lead to yield losses.
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