Àãðàðåí óíèâåðñèòåò -Ïëîâäèâ ÀÃÐÀÐÍÈ ÍÀÓÊÈ Ãîäèíà III Áðîé 5 2011 21Êëþ÷îâè äóìè: ôðåçóâàíå, ïëàíèíñêè òåðåíè, ïî÷âà, ïëúòíîñò, ðàçòðîøàâàíå. Key words: rotary cultivating, mountainous terrain, soil, consistency, breaking down. ÂÚÂÅÄÅÍÈÅ Îáåêò íà íàñòîÿùîòî èçñëåäâàíå å ïî÷âåíàòà ôðåçà ÔÍ-1,6 â àãðåãàò ñ òðàêòîð ÄÒ-75Ì ïðè ðàáîòà íà íàêëîíåíè òåðåíè â ðàéîíà íà ñ. Ìàíàñòèð, îáëàñò Ïëîâäèâñêà.  íàó÷íàòà ëèòåðàòóðà ñå ñðåùàò ïîäîáíè èçñëåäâàíèÿ [1, 2], êàòî íàêëîíúò íà îáðàáîòâàíîòî ïîëå äîñòèãà äî 6-8°.Îáðàáîòâàíèÿò òåðåí ïðåäñòàâëÿâà åñòåñòâåíà ïëàíèíñêà ëèâàäà, ñèëíî çà÷èìåíà, íà êîéòî ïðåäñòîè ñúçäàâàíå íà ìàëèíîâî íàñàaeäåíèå. Îáùàòà ïëîù å 32 dka, îò òÿõ 18 dka ñà ñ íàêëîí îò 7 äî 16°, 6,2 dka -ñ íàêëîí, ïî-ãîëÿì îò 20°, è 7,8 dka -ñ íàêëîí äî 6°. Ïî÷âàòà å êàôÿâà ãîðñêà. Âëàaeíîñòòà é âàðèðà îò 12,7 äî 18,4% â ðàçëè÷íèòå ó÷àñòúöè. Ñúäúðaeà ãîëÿìî êîëè÷åñòâî ñêàëíè êúñîâå, ñ äèàìåòúð, ïî-ãîëÿì îò 0,10 m, êîåòî çàòðóäíÿâà ïî÷âîîáðàáîòêàòà.Îñíîâíàòà îáðàáîòêà å èçâúðøåíà ñ òðàêòîð ÄÒ-75 è ïëóã ÏÍ-4-35.Êà÷åñòâåíèòå ïîêàçàòåëè ñëåä îðàíòà ñà îòðàçåíè â òàáëèöà 1. ÈÇËÎAEÅÍÈÅÍåçàâèñèìèòå ïðîìåíëèâè (ôàêòîðèòå) ñà ïîñòúïàòåëíàòà ñêîðîñò íà àãðåãàòà è äúëáî÷èíàòà íà ôðåçóâàíå. Âñÿêà îò òÿõ ñå ïðîìåíÿ íà òðè íèâà. Çàâèñèìèòå ïðîìåíëèâè (ïîêàçàòåëèòå) ñà ïëúòíîñòòà íà ïî÷âàòà è ñòåïåíòà íà ðàçòðîøàâàíåòî é ñëåä îáðà-áîòêà. Çà âñÿêà òî÷êà îò îïèòà ñà ïðîâåäåíè ïî 3 ïîâòîðåíèÿ. Ñòåïåíòà íà ðàçòðîøàâàíå íà ïî÷âàòà ñå îò÷èòà êàòî îòíîøåíèå íà òåãëîòî íà ôðàêöèèòå ïî÷âà ñ ðàçìåðè 0-50 mm êúì òåãëîòî íà öÿëàòà ïðîáà, èçìåðåíî â %. Ïëúòíîñòòà íà ïî÷âàòà ñå îïðåäåëÿ ñ ïëúòíîìåð. Agricultural University -Plovdiv Àãðàðåí óíèâåðñèòåò -Ïëîâäèâ E-mail: dkechajov@mail.bg Ðåçþìå Íàáëþäàâàíî å âëèÿíèåòî íà êèíåìàòè÷íèÿ ïîêàçàòåë è äúëáî÷èíàòà íà ðàáîòà âúðõó ïëúòíîñòòà è ðàçòðîøàâàíåòî íà ïî÷âàòà ïðè ôðåçóâàíå íà íàêëîíåí òåðåí. Óñòàíîâåíî å, ÷å âúðõó èçìåíåíèåòî íà äâåòå çàâèñèìè ïðîìåíëèâè ïî-ãîëÿìî âëèÿíèå îêàçâà êèíåìàòè÷íèÿò ïîêàçàòåë íà ôðåçàòà. Ñ íåãîâîòî íàðàñòâàíå ñå ïîäîáðÿâà ñòåïåíòà íà ðàçäðîáÿâàíå íà ïî÷âàòà è ñå íàìàëÿâà ïëúòíîñòòà íà îáðàáîòåíèÿ ïî÷âeí ñëîé. Óâåëè÷àâàíåòî íà äúëáî÷èíàòà íà ôðåçóâàíå âëîøàâà ñòåïåíòà íà ðàçòðîøàâàíå íà ïî÷àòà è óâåëè÷àâà íåéíîòî óïëúòíÿâàíå. Ñúñòîÿíèåòî íà ïî÷âàòà ñëåä ôðåçóâàíå íà ñèëíî íàêëîíåíè òåðåíè óäîâëåòâîðÿâà àãðîòåõíè÷åñêèòå èçèñêâàíèÿ. DOI AbstractThe influence of the cinematic indicator as well as the crushing and grinding capabilities of the soil on a sloping terrain were observed. It was found that the cinematic indicator of the router influenced greatly the two dependent variables. Its increase improved the degree of fragmentation of the soil and reduced the density of the treated soil. Increasing the depth of the grinding capabilities worsened the degree of soil crushing and increased its compaction. The condition of the soil after rotary cultivation of severely sloping terrains met all agritechnical requirements.

Abstract. A methodology has been developed for the selection of an electric motor for the replacement of the mechanical with electric drive of the sowing apparatus of the Saxonia A200 seeder. The gear ratio, angular velocity and torque required to drive the sowing apparatus have been determined. As a result, 22.65 W of motor power is calculated.

An approach to modeling herbicide installation for the treatment of peach plantations is proposed. The height of the stem was determined for 4 varieties of peaches. Considering this parameter, the maximum height of the herbicide system and the nozzles on it are indicated. Simulated modelling of the sprayed fluid along the working width of each nozzle was performed. The irregularity of spraying was determined depending on the distance between the nozzles. On the basis of the analysis, the optimal parameters of the spreader system were determined: height - 0.35 m, distance between the spreaders - 0.40 m.

No abstract