Ubaydullayeva Shohista Hidoyatillo qizi

Biogumus – go‘ngdan tayyorlangan sifatli organik o‘g‘it bo‘lib, qishloq xo‘jalik ekinlarining barchasiga qo‘llash mumkin. Uning tarkibida 40-50 foiz quruq organik massa, 10-12 foiz gumus, 0,8-0,3 foiz azot, 1,3-2,5 foiz fosfor, 1,2-3,9 foiz kaliy, 4,5-8,0 foiz kaltsiy va boshqa mikroelementlar mavjud. Annotatsiyani o‘qish va iqtibos keltirish →

BiogumusorganicKaliforniya chuvalchangiozuqagumusazot

Internet va axborot texnologiyalari shiddat bilan rivojlanib ketayotgan bu dunyoda jamiyatning barcha ijtimoiy va iqtisodiy bo’g’inlari virtual olamga ko’chib boshlagan. Shular qatorida tijorat ham elektron shaklga o’tishi bu tabiiy hol hisoblanadi. Insonlar uchun hech qanday to’siqlarsiz bir vaqtning o’zida bir necha … Annotatsiyani o‘qish va iqtibos keltirish →

uy-joydan birgalikda foydalanishtransportdan birgalikda foydalanishavtomobildan birgalikda foydalanishuyga xizmat ko’rsatish bo’yicha xizmatlarkraudfondingo’zaro kreditlash

Crack occurrence in reinforced concrete should be minimized for both durability and economical reasons as crack repair is costly. Autogenous repair, or self-healing, of concrete would save a substantial amount of money, as manual inspection and crack repair could be minimized. Thus, a reliable self-healing mechanism fo… Annotatsiyani o‘qish va iqtibos keltirish →

Self-concret healingcrackbacteriacalciumcarbonatebiomineralization.