The Owner-built HomesteadScribner, 1977 - 394 หน้า |
จากด้านในหนังสือ
ผลการค้นหา 1 - 3 จาก 21
หน้า 155
... oxygen and easily dissipates into the atmosphere . Tilling in- troduces that excess of oxygen which makes this likely , while at the same time it asphyxiates microbial populations . By applying mulch as sheet compost , soil's humus ...
... oxygen and easily dissipates into the atmosphere . Tilling in- troduces that excess of oxygen which makes this likely , while at the same time it asphyxiates microbial populations . By applying mulch as sheet compost , soil's humus ...
หน้า 306
... oxygen content of pond water . Disease outbreaks occur after periods of low oxygen content in which a latent virus is activated . When water temperature is the same from surface to pond 306 / The Owner - Built Homestead.
... oxygen content of pond water . Disease outbreaks occur after periods of low oxygen content in which a latent virus is activated . When water temperature is the same from surface to pond 306 / The Owner - Built Homestead.
หน้า 307
... oxygen . A small but constant flow of water into a pond will raise its oxygen level . You should replace water from the bottom of the pond with fresh water , especially where temperature dif- ferences cause the stratification ( or ...
... oxygen . A small but constant flow of water into a pond will raise its oxygen level . You should replace water from the bottom of the pond with fresh water , especially where temperature dif- ferences cause the stratification ( or ...
ฉบับอื่นๆ - ดูทั้งหมด
คำและวลีที่พบบ่อย
acid acre agricultural alfalfa algae amino acids animal areas bacteria barn beans bluegill building carbohydrates carbon dioxide cattle chlorophyll climate composting concrete cool corn cover crop rotation cultivation diet digester drainage drill earth environment equipment farmers farming feed feet fence fertilizer Figure fish forage Forester fruit garden goats grafting grain grass grazing greenhouse ground growing growth harvested heat homestead humus inches increase land layer legume livestock living located manure material mature ment method milk minerals moisture mulch nitrogen nutrients nutrition orchard organic matter oxygen pasture percent pipe plant plow polyculture pond posts pounds practice produce protein pump reduced requires Rodale Press roots rotation row crops season seed sheet composting silage silo slope sod crops soil soybeans storage structure subsoil supply surface temperature tillage tion tractor tree crops ture vegetables vitamin weeds wind winter wire wood