Ìåòà. Âèâ÷èòè âïëèâ íà ôîðìóâàííÿ ïðîäóêòèâíîñò³ ã³áðèä³â ñîíÿøíèêó ð³çíèõ âàð³àíò³â îñíîâíîãî óäîáðåííÿ òà ïîçàêîðåíåâèõ ï³äaeèâëåíü íà éîãî ôîí³ çà âèðîùóâàííÿ íà ÷îðíîçåìàõ îï³äçîëåíèõ. Ìåòîäè. Äîñë³äaeåííÿ ïðîâîäèëè ó 2016, 2017 ðð. â óìîâàõ Õìåëüíèöüêî¿ îáëàñò³ íà ïîñ³âàõ ã³áðèä³â ñîíÿøíèêó Òàëñà, Ïðîíòî, Ãîëäåí â³äïîâ³äíî äî çàãàëüíîïðèéíÿòèõ ìåòîäèê. Çáèðàííÿ ïðîâîäèëè ïðÿìèì êîìáàéíóâàííÿì. Óðîaeàéí³ñòü âèçíà÷àëè ïîä³ëÿíêîâî ç óðàõóâàííÿì çàñì³÷åíîñò³ òà âîëîãîñò³ 14 % (ÄÑÒÓ 7011:2009). Âì³ñò î볿 âèçíà÷àëè ìåòîäîì çíåaeèðåíîãî çàëèøêó çà ÃÎÑÒ 10857-64, ïðîòå¿íó -çà ÃÎÑÒ 30131-96. Ðåçóëüòàòè. Âíåñåííÿ ì³íåðàëüíèõ äîáðèâ ïîçèòèâíî âïëèâàëî íà âðîaeàéí³ñòü íàñ³ííÿ äîñë³äaeóâàíèõ ã³áðèä³â. Âíåñåííÿ N 40 Ð 40 Ê 60 çàáåçïå÷èëî ïðèð³ñò óðîaeàéíîñò³ ã³áðèäó Òàëñà íà 53 %, Ïðîíòî òà Ãîëäåí -íà 58 %, òîä³ ÿê âíåñåííÿ N 80 Ð 80 Ê 120 çá³ëüøèëî âðîaeàéí³ñòü öèõ ã³áðèä³â ïîð³âíÿíî ç êîíòðîëåì â³äïîâ³äíî íà 75, 73 òà 81 %. ϳäaeèâëåííÿ êîìïëåêñíèì äîáðèâîì ßðèëî Îë³éíèé (2 ë/ãa) ó ôàç³ 3-4 ïàð ëèñòê³â òà ôàç³ óòâîðåííÿ êîøèêà çà îñíîâíîãî óäîáðåííÿ N 40 Ð 40 Ê 60 òà N 80 Ð 80 Ê 120 ï³äâèùóâàëî âðîaeàéí³ñòü íà 5,4-9,1 % ïîð³âíÿíî ç ôîíîâèìè âàð³àíòàìè óäîáðåííÿ. dz çá³ëüøåííÿì íîðì àçîòíèõ äîáðèâ çìåíøóâàâñÿ âì³ñò î볿 â ÿäð³ ñ³ì'ÿíîê äîñë³äaeóâàíèõ ã³áðèä³â ñîíÿøíèêó. Òàê, ó ã³-