5
МУНДАРИЖА
Кириш….................................................................................................................................................7
Картошканинг озиқ-овқат сифатидаги аҳамияти ...................................................8
Морфологик хусусиятлари
................................................................................................11
Палаги ва пояси.......................................................................................................................11
Барги..............................................................................................................................................11
Гули.................................................................................................................................................12
Меваси..........................................................................................................................................14
Туганаги.......................................................................................................................................14
Илдиз тизими............................................................................................................................18
Ташқи муҳит омилларига муносабати
..........................................................................18
Тупроқ шароити.......................................................................................................................23
Навлари......................................................................................................................................24
Эртапишар картошка етиштириш
..............................................................................…31
Нав танлаш................................................................................................................................31
Ер танлаш, тайёрлаш ва ўғитлаш.................................................................................32
Уруғни экишга тайёрлаш...................................................................................................33
Экиш олди уруғлик туганакларни нишлатиш ва экиш.....................................34
Экиш муддати, усули ва қалинлиги..............................................................................35
Экинни парвариш қилиш..................................................................................................38
Чопиқ қилиш............................................................................................................................40
Озиқлантириш.........................................................................................................................41
Суғориш.......................................................................................................................................41
Йиғиш...........................................................................................................................................44
Do'stlaringiz bilan baham: