| 摘要 |
PROBLEM TO BE SOLVED: To well maintain the effects of the fertilizations in a ridging fertilization apparatus which can simultaneously perform deep layer fertilization and side ridge fertilization. SOLUTION: This ridging fertilization apparatus is provided with a ridge-forming device composed of a soil-plowing tillage portion 20, and a ridging device 25 and a rear cover 23 for covering a portion behind the soil-plowing tillage portion 20 and simultaneously pressing the upper surface of the soil, in the rear portion of a tractor 1; a first fertilization device 61 arranged in front of the tillage portion 20 and capable of fertilizing at a deeper position than the tilling depth of the tillage portion 20; and a seeder 42 arranged behind the tillage portion 20 and for sowing seeds on the surface of the formed ridge; and a second fertilization device 62 for applying a fertilizer on the side portions of the sowed seeds. COPYRIGHT: (C)2009,JPO&INPIT
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