The Owner-built HomesteadScribner, 1977 - 394 หน้า |
จากด้านในหนังสือ
ผลการค้นหา 1 - 3 จาก 14
หน้า 121
... rotation , where the land was grazed continuously for eight to ten years before intensive cropping , plant and animal relationships improved . The customary short - term rotation of one or two years of grazing followed by a crop of ...
... rotation , where the land was grazed continuously for eight to ten years before intensive cropping , plant and animal relationships improved . The customary short - term rotation of one or two years of grazing followed by a crop of ...
หน้า 159
... crop rota- tion . They rotate shallow - rooted crops ( for example , barley and corn ) with deep - rooted crops ( such as wheat and alfalfa ) . Note , as shown in Figure 11.4 , that one crop may ... crop system of plant rotation has been.
... crop rota- tion . They rotate shallow - rooted crops ( for example , barley and corn ) with deep - rooted crops ( such as wheat and alfalfa ) . Note , as shown in Figure 11.4 , that one crop may ... crop system of plant rotation has been.
หน้า 160
Barbara Kern, Ken Kern. The double - crop system of plant rotation has been ac- claimed as an effective method for discouraging crop disease and insect infestation . Generally , three crops are rotated on the same ground in a two - year ...
Barbara Kern, Ken Kern. The double - crop system of plant rotation has been ac- claimed as an effective method for discouraging crop disease and insect infestation . Generally , three crops are rotated on the same ground in a two - year ...
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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