Adverse Effects of Heat on Sunflowers and Corn
The extreme high temperatures over the past week, exceeding 40-41ºC in some places (Svishtov, Ruse, Sandanski, Stara Zagora, Elhovo), and the lack of moisture have raised concerns about the survival
Impact of Unfavorable Weather Conditions on Spring Crops
Recent unfavorable agrometeorological conditions have led to wilting and drying of the lower leaves of plants such as corn and sunflowers. This has been observed in the Silistra region, affecting crop yield. Some perennial crops have also experienced leaf burns and premature leaf drop due to the harsh weather conditions. Additionally, late-season vegetable crops are showing signs of sterility, impacting their production.
Forecasted Changes
Following the dry and hot weather, changes are expected in the upcoming period. It is important for farmers to monitor their crops closely and take necessary measures to mitigate the impact of these weather conditions on their harvest.
The Impact of Weather Conditions on Agricultural Crops
The forecasted rainfall at the end of the second and beginning of the third ten-day period will be of utmost importance for the recovery of agricultural crops affected by heat stress. In the context of deepening drought in many areas of the fields, this rainfall will be insufficient to overcome the deficit of soil moisture in the 50 and 100 cm layer, especially in the eastern regions.
Less rainfall is expected in the eastern regions, which will require the implementation of a suitable irrigation regime for the later maize hybrids.
Development of Agricultural Crops
During the development stage of agricultural crops, there will be accelerated growth without extremely high maximum temperatures. In the beginning of the third ten-day period, early maize hybrids will enter the milky ripeness phase, while mid-late hybrids will go through tasseling, silking, and grain formation – critical phases in terms of soil moisture. Sunflowers will be in the process of seed filling.
Protecting Crops from Hailstorms
During this period, hailstorms are expected, posing a threat to agricultural crops. After a hailstorm, it is advisable to treat fruits and vines with fungicides containing honey to reduce the risk of secondary infections by pathogens.