Abstract:
Ecological agriculture seeks to use nature as model for designing
agricultural systems. Since nature integrates plants and animals into a
heterogeneous landscape, a major principle of ecological agriculture is to
create and maintain biodiversity. The agricultural practices can contribute
both on obtaining rentable and superior quality yields and on environment
conservation thruogh ousting the unfavorable ecological effects, on national
and local level. One of the unpolluted agricultural practices would be
introduction of intercropping in the ecological agriculture system.
The intercropping outlook in the agricultural systems and the local
potential for the ecological agriculture take into consideration the possible
economic benefits and the future requirements for the agro-food industry.
The paper try to realise a research on the biology and productivity
of oat-pea intercropping, in field conditions, for evaluating his adaptability
on natural conditions and ecological cultivation.
The oat-pea intercroppig experiment begin in spring of 2006, beeing
located in Moara Domneasca Experimental Station, on brown-red soil, after
block method, with randomised variants, in 4 repetitions. The seeds used for
experiments were ecological. The intercropping with oat (Avena sativa) and
pea (Pisum sativum) is forming the spring fodder, which was sown in close
rows, in 12.5 cm, at a 3-4 cm depth. The oat had a 200-300 seeds/sm density
and of 100 germinable seeds/sm at pea. After the observations, it was
determined the following: plants hight; leaf number; inflorescence
apparition; productivity elements; humidity and dry matter of the mixture.
Thus, oat had a vegetation period of 97 days, period in which he reached 82
cm height. The pannicle appeared on 61 days after emergence and after 75
days begin the seed filling.Pea had a vegetation period of 70 days, reached
55 cm height, with a growing ritm of 0.78 cm/day and formed 14 knots on
the main stem. The inflorescence appeared after 30 days from emergence. On
47 days after emergence, could be noticed the pods apparition.
