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Pedoclimatic elements and smart technology act simultaneously on the biological processes of agricultural crops and on the level of harvest, which requires the study of their correlation to determine the continuous influence of these factors in obtaining the planned levels of production. In Romania, annually, over 2.1 million hectares of wheat are cultivated, with annual productions of over 10 million tons, placing wheat crops in the first place as economic importance. Knowing the management of natural resources in quantitative terms is especially valuable when we talk about their sustainable use. Our evaluation includes in this paper the relationship between the pedoclimatic resources of South-Eastern Romania and the zoning of wheat varieties in order to obtain superior quantitative and qualitative productions. The last 11 agricultural years are analyzed, both in terms of the influence of global warming and in terms of wheat zoning to obtain sustainable production to highlight the genetic potential of the varieties under the conditions of the Brailei Plain. A stability of the varieties Glosa, Miranda, Litera (varieties over 15 years old) was observed, but not least of the new ones created by the National Research and Development Institute from Fundulea such as: Pitar, Ursita, Adelina, Izvor. [ABSTRACT FROM AUTHOR]

The 3-year research on Alexander Lucas and Santa Maria pear varieties followed the influence of the time interval from harvest to storage of the fruit on quality characteristics, weight loss, quality depreciation and storage length. The results showed that in both varieties harvested at the optimal time and put into storage 24 hours after harvest (V1), the quality characteristics, weight loss, quality deterioration and storage length were significantly higher (better) than for the variants in which the fruit was kept for 6 days (V2) and 12 days (V3) at 10-14 C before being put into the cooling room. Thus, the weight losses at the end of storage varied between 9.2-9.6% in V3 (fruit stored 12 days after harvest) compared to 6.4-7.2% in V1 (fruit put into storage after 12 hours), as the storage period was longer in V1. The qualitative losses at the end of storage ranged from 5-5.8% in fruit placed in the cooling room 24 hours after harvest, compared to 7.6-8.2% in fruit where storage in the cooling room was delayed by 12 days. The optimal storage period of the pear fruits, stored as soon as possible after harvesting, belonging between 90 days for the summer variety Santa Maria and 115 days for the winter variety Alexander Lucas, in cold storage room. [ABSTRACT FROM AUTHOR]

The article presents the results of studying the reaction of the early maturing medium-fiber cotton variety Pidozerskyi 4 to the sowing rate and row width under different conditions of moisture supply in the Southern Steppe of Ukraine. The scheme of the experiment included soil moisture conditions: natural moisture and watering at 70% of the lowest moisture content (LM); row width 30, 60, 90 cm; sowing rate of 250, 300 and 350 thousand pieces/ha. Studies have shown that the formation of the number of pods on a plant that opened before harvesting was significantly influenced by the rate of seed sowing, with an increase in which the indicators of the number of pods decreased on average by 43.9% in the experiment, and regardless of the conditions of soil moisture and width row spacing. The variability of the effective signs of the mass formation of the boll of pre-freeze raw cotton depended by 25.0% on the humidification conditions, by 15.0% - on the width of the rows, and by 16.0% - on the seeding rate; yield of domestic raw cotton - by 66.0% from the conditions of wet supply, by 3.0% - from the width of the rows and by 9.0% - from the sowing rate. The significant influence of irrigation on the yield formation of frozen raw cotton was determined. The increase in yield on irrigated plots at the seeding rate of 300,000 units/ha was: for row widths of 30 cm - 17%, for 60 cm - 18%, for 90 cm - 22%, compared to non-irrigated options. Raw cotton production is highly effective, the profitability level is 63-69%. [ABSTRACT FROM AUTHOR]