Поглощение и использование элементов питания сортами яровой пшеницы при разных технологиях возделывания
2008
Berestov, I.I. | Krasotskaya, O.S., National Academy of Sciences (Belarus). Scientific and Practical Center for Arable Farming
Results of study of uptake and usage of nitrogen, phosphorous and potassium by spring wheat (Triticum aestivum) varieties (Rassvet, Rostan, Viza, Diriya, Toma, Banti and Munk) cultivated in accordance with three cultivation technologies differing by their intensity level (the fist method – application 90 kg/ha of nitrogen and single application of fungicides; the second method - application 120 kg/ha of nitrogen and double application of fungicides, single application of retardants and insecticides; the third method - application 150 kg/ha of nitrogen and three-time application of fungicides, single application of retardants and double application of insecticides) realized in the conditions of the Republic of Belarus were presented. It was established that the cultivated varieties absorbed nitrogen, phosphorous and potassium practically in the identical quantities and proportions and did not substantially differ by indices of organic matter content in herbage, synthesized in reliance on 1 kg of the absorbed elements sum. Munk variety proved to the agrochemically effective (energy-rational) and surpassed other varieties by the quantity of organic matter in grain per 1 kg of the amount of the absorbed NPK. Research results proved that cultivation technologies and methods rendered influence on the uptake of nutritious substances by spring wheat in a greater degree than the varietal peculiar properties of crops. Increasing of the intensity level of cultivation technology caused the increasing of trace element substances uptake by studied crops and lowering of grain and herbage organic matter synthesis per 1 kg of applied NPK fertilizers
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