Published in Scientific Papers. Series A. Agronomy, Vol. LXVII, Issue 1
Written by Andrei BĂNICĂ, Doru Ioan MARIN
The lack of precipitation puts more and more emphasis on the cultivation technology of the agricultural land, for which it is necessary to adapt the cultivation technology according to the climatic changes. Sorghum can be a substitute for corn when conditions do not allow its cultivation. The number and quality of the productive brothers obtained in the sorghum culture depends a lot on the pedoclimatic conditions, but also on the technology applied in the culture. Our research aimed to evaluate the twinning potential of sorghum under the conditions of South-East Romania (Sărăţeni Locality, Ialomiţa County), analyzing the interaction between different variants of the basic soil work and some fertilization funds based on nitrogen, phosphorus and foliar fertilizers. In this way, it will be possible to establish the optimal variants for stimulating twinning, but also obtaining productive brothers who have reached maturity. The results of the three years of research show that they were different in terms of precipitation, 2021 being a year with high precipitation and 2022-2023, two years with a water deficit, so that the influence of climatic conditions on twinning can be observed. The deeper the loosening of the soil was, the higher the twinning was, tillage by scarification at 35 cm and at 45 cm excelled at all four fertilizations, thus having the highest growth rates of the number of productive siblings in sorghum culture. The most favorable combination of technological factors that ensured a maximum twinning yield in 2022 of 3.6 productive brothers per plant, was represented by tillage by scarifying at 35 cm and a fertilization of N100+P50+Foliar (Borocal).
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