Tabiiy fanlar

EFFICIENCY OF USE OF VARIOUS DOSES OF NITROGEN FERTILIZERS AND BIOLOGICAL PRODUCTS IN GROWING TOMATOES

chaff, tomatoes, ecostim, nitrogen fertilizers, growth and development, productivity, economy.

Authors

  • Saydulla BOLTAYEV Saydulla BOLTAYEV, Termiz agrotexnologiyalar va innovatsion rivojlanish instituti professori., q.x.f.d, Uzbekistan
  • Oybek NORMURATOV Termiz davlat universiteti dotsenti v. b., q.x.f.f.d, PhD Paxta seleksiyasi va urug‘chiligi va yetishtirish agrotexnologiyalari ilmiy-tadqiqot institutining tayanch doktoranti, Uzbekistan
  • Muxamadi SAIDOV Termiz davlat universiteti professori v.b., Uzbekistan

Scientific research is being carried out in the world and certain results have been obtained in such priority areas as the use of
various biological preparations against the background of mineral fertilizers in order to preserve soil fertility and increase tomato
yields, as well as determining the timing of nitrogen fertilizer application. In this regard, special attention is paid to scientific
research aimed at meeting the nutrient needs of agricultural crops, including tomatoes, increasing their resistance to various pests
and diseases, as well as the selection of tomato varieties that correspond to the soil and climatic conditions of each region based
on the application biological preparations against the background of mineral fertilizers and determining the timing of the
introduction of nitrogen fertilizers, by determining the agrochemical properties and biological activity of agricultural land.