CONTRIBUTIONS TO THE IMPROVEMENT OF THE SILAGE CORN CULTIVATION TECHNOLOGY

S. Cara

Abstract
The improvement of the fodder base structure by using silage corn allows modifying the winter nourishing type, much like the summer one. This research aim is the influence of cultivation technique, fertilization and hybrid on production and its quality. As biological material we used Podu Iloaei 110 and Dekalb 355 hybrids, sewed in pure culture, mixed with soybean on same rows and on alternative rows corn - soybean; fertilization was made with cattle manure and complex fertilizer 22-22-0. The biggest productions were obtained when cultivating silage corn, for both hybrids mixed with soybean (15 kg/ha corn + 40 kg/ha soybean), on the same rows, using fertilization with manure 30 t/ha + complex fertilizer 100 - 200 kg/ha (15,2 - 15,7 t/ha for Podu Iloae 110 and 14,4 - 15,7 t/ha d.s. for Dekalb 355). The studied factors influenced the fodder's raw protein and raw cellulose contents. The highest protein content and the lowest cellulose content was registered when cultivating the mixture on same rows, fertilized with 30 t/ha + complex fertilizer 200 kg/ha for Podu Iloaei 110 hybrid (12,75 % PB and 26,8 % CB) and for Dekalb 355 hybrid in pure culture, same fertilization, we obtained 12,95 % PB and 26,95 % CB. For the Moldavian forest steppe area we recommend cultivating Podu Iloaei 110 hybrid.

Key words: corn, silage, fertilization, hybrids, production