|
Agrokimyoviy xaritanoma tuzish............................................................................392
Agrokimyoviy xaritanoma tuzish............................................................................392
Tuproqlarni oziq elem entlari bilan ta ’m inlanganlik darajasiga
ko'ra guruhlash.......................................................................................................393
Tuproqlarni ehirindi m iqdori bo'yicha guruhlash............................................393
Tuproqlarni harakatchan azot miqdori bo'yicha guruhlash.........................394
Tuproqlarni harakatchan fosfor miqdori bo'yicha guruhlash..................... 395
Tuproqlarni harakatchan kaliy miqdori bo'yicha guruhlash.........................395
Tuproqlarni kislotalilik darajasi bo'yicha guruhlash.........................................396
Tuproqlarni ishqoriylik darajasiga ko'ra guruxlash.......................................... 397
Agrokim yoviy xaritanom a tuzishda bajariladigan
ishlarning tartibi va texnikasi...............................................................................397
Dalaning tuproq — agrokimyoviy pasporti........................................................... 398
Tuproqlarni agrokim yoviy tekshirish materiallaridan
amalda foydalanish.......................................................................................................400
O'g'itlardan foydalanish rejasini tuzish................................................................ 401
Azotli o'g'itlardan foydalanish rejasi..................................................................... 402
Fosforli o'g'itlardan foydalanish rejasi................................................................. 406
Kaliyli o'g'itlardan foydalanish rejasi..................................................................... 408
Organik o'g'itlardan foydalanish rejasi................................................................ 410
X III bob. A G R O K IM Y O NIN G EKOLOGIK
M U A M M O LA R I
Kimyoviy vositalar qo'llashning ekologik
m u om m olari...........................411
Oziq elem entlarning ekologiyaga ta’siri. Tuproqning xossalari va
ekologik muammolar.................................................................................................. 430
Azotli o'g'itlarning ekologik sharoitga ta’siri.....................................................432
Fosforli o'g'itlarning ekologik sharoitga ta’siri....................................................435
Kaliyli o'g'itlarning ekologik sharoitga ta’siri.....................................................438
Kalsiyning ekologik sharoitga ta'siri.......................................................................441
Mineral va organik o'g'itlarni birgalikda qo'llashning
ekologik mohiyati.........................................................................................................443
Atrof-m uhitni o 'g'itlar bilan ifloslanishining
oldini olish chora-tadbirlari.................................................................................... 446
O'g'itlarni tashish, saqlash va qo'llash...................................................................446
M a’dan o'g'itlarni qo'llash va ularning ekologik om illari.............................449
XIV bob. AGROKIM YO VIY T A D Q IQ O TLA R VA
U LA R N IN G T U R 1AR I
Vegetatsiya tadqiqotlari usuli.................................................................................... 453
Qumli va suvli m uhitda amalga oshiriladigan tajribalar.............................. 455
Oziq aralashmalar.........................................................................................................456
Qumli va suvli m uhitda tajribalar o'tkazish texnikasi. Qum li rnuhit..... 463
Suvli muhit..................................................................................................................... 469
Oquvchan eritmalar iisuli............................................................................................. 472
Yakkalab oziqlantirish usuli....................................................................................... 4 7 4
Sterillangan muhitda o'tkaziladigan tajribalar.....................................................4 7 6
Gidroponika....................................................................................................................478
Radioaktiv izotoplarni qo'llash....................................................................................4 83
Izotoplar haqida tushuncha. M uqobil va radioaktiv izotoplar............... ■....484
A grokim yoviy izlanishlarda azotning m u q ob il
7N
is
izotopidan foydalanish.....................................................................................4 8 6
l5P32 radioaktiv izotopi bilan am alga oshiriladigan vegetatsiya
tajribalari...................................................................................................................4 87
Tuproqli m uhitda amalga oshiriladigan vegetatsiya tajribalari............. 4 8 8
Lizimetrik tajribalar usuli........................................................................................... 5 06
Dala tajribalari va ularga qo'yiladigan talablar................................................. 5 1 2
Tajribaning tipikligi..................................................................................................... 512
Bitta belgi bilan farqlanish prinsipi..........................................................................513
Tajribalarni maxsus maydonchalarda o ‘tkazish....................................................5 14
H osilni hisobga olish va tajribaning h a q q o n iy lig i............................................. 515
Dala tajribalarida uchraydigan xatoliklarni uchta toifaga
bo'lish m um kin.............................................................................................................. 515
Dala tajribalarining turlari...........................................................................................516
Tajriba uchun m aydon tanlash va u n i tayyorlash.............................................. 5 2 0
Dala tajribasi uslubiyotining tarkibiy q ism lari....................................................521
Dala tajribalarini joylashtirish va o ‘tkazish texnikasi....................................... 5 2 9
Tajriba maydonchasidagi dala ishlari........................................................................ 529
Sug'oriladigan sharoitda o'tkaziladigan dala tajribalarining
o'ziga xos xususiyatlari......................................................................................... 534
M ineral o ‘g ‘it turlari, shakllari va m e ’yorlarini o'rganish
bo'yicha o'tkaziladigan dala tajribalarining tizimlari.................................. 535
M ikroelem ent bilan amalga oshiriladigan dala tajribalari.............................5 3 9
Glossariy.......................................................................................................................... 543
Adabiyotlar ro'yhati...................................................................................................... 545
Juraqul Sattarov
Saidjon Sidiqov
S ag d u lla Abdullayev
Abdurahmon E rgashev
Z u lxu m or Xaidm uxam edova
Y ak u txon Kulmuradova
U m edillo Q asimov
N arzu lla Akbarov
AGROKIMYO
01 iy o ‘quv yurtlari uchun darslik
M uharrir X u doyberdiDostları ilə paylaş: |
|
|