[Potencial of maize productivity]
2006
Nadtochaev, N.F. | Meleshkevich, M.A. | Stepanenko, N.S.,National Academy of Sciences (Belarus). Scientific and Practical Center for Arable Farming
Higher productivity of corn concerning other grain crops (to 200 c/ha f. un.) proves to be true in the agricultural enterprises of Byelorussia. Last 3 years (2003-2005) It has made 39,6 c/ha, whereas winter rye - 22,2, a winter wheat - 30,2, winter triticosecale - 30,5, spring barley - 29,6, oats - 26,9, a spring wheat-27,8, spring triticosecale - 34,4 c/ha. In recalculation on fodder units excess makes 31-107 %. Besides the corn at harvesting on grain leaves after itself in 2-3 times organic substance more, that beneficial influences on soil fertility. It was convinced in Brest are where relative density of corn on grain in structure of an arable land reaches 30 %. Appreciable growth of productive potential of corn became possible owing to great world achievements in selection of early hybrids, on the one hand, and to essential warming of a climate, on the other hand. At the sum of effective temperatures more 820-870 deg C cultivation of early ripe and middle ripe hybrids of corn on grain is justified. At the same time, fodder unit of corn manages much more expensively than grain of other grain crops and grasses that constrains production of concentrated forages. In maize growing reserves of economy of expenses are used not yet to the full and reach at cultivation of 30-40 %, and at completion of a crop can reach up to 100-200 %. For example, at repeated accommodation of corn near to farms, especially at cultivation on a silo, only the charge of fuel it is possible to reduce on 40-100 l/ha. The expediency in repeated cultivation consists in the fact that maize uses manure consequences better than other cultures
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