초록 ▼

A furrow opening point 40 is described for attachment directly to the seed boot of a hoe type seed drill between the split packer wheels. The furrow opening point 40 has an elongated body 50 that extends from an upper fertilizer receiving portion 56 to a bottom edge 54 of the soil engaging portion 5

A furrow opening point 40 is described for attachment directly to the seed boot of a hoe type seed drill between the split packer wheels. The furrow opening point 40 has an elongated body 50 that extends from an upper fertilizer receiving portion 56 to a bottom edge 54 of the soil engaging portion 52. The soil engaging portion has an upper section 61 and a lower section 62 for forming a two-tier furrow. A liquid fertilizer passageway 90 extends downward through the elongated body to the bottom edge 54 for dispensing liquid fertilizer at the base of the furrow. A dry granular fertilizer passageway 96 extends downward through the elongated body to a bottom surface 84 for dispensing dry granular fertilizer down a vertical channel formed along the trailing face 80 to the base of the furrow. A leveling section 100 forward of the seed opening 30 levels and firms the soil in the upper portion of the two-tier furrow to form a good seed bed.

대표청구항 ▼

A fertilizer furrow opening device for attachment to a seed boot of a seed drill in which the seed boot has a seed passageway extending downward therethrough terminating in a seed drop opening along a lower profile, said opening device comprising: an elongated body including a soil engaging portion,

A fertilizer furrow opening device for attachment to a seed boot of a seed drill in which the seed boot has a seed passageway extending downward therethrough terminating in a seed drop opening along a lower profile, said opening device comprising: an elongated body including a soil engaging portion, for extending from below a soil level when the seed drill is in a soil working position to form a deep, narrow two-tier furrow in front of the seed boot, said elongated body also extending upward to a fertilizer receiving portion, above the soil level to receive both a liquid fertilizer conduit and a dry granular fertilizer conduit; wherein the soil engaging portion has an upper soil engaging section that extends downward from the fertilizer receiving portion for forming an upper segment of the two-tier furrow to receive seed from the seed drop opening along a seed line formed at a base of the upper segment of the two-tier furrow; wherein the soil engaging portion has a lower knife section that extends downward and forward from the upper soil engaging section terminating in a bottom edge having a leading tip for forming a narrow lower segment of the two-tier furrow to receive both liquid and dry granular fertilizers therein substantially below the seed line at a base of the lower segment of the two-tier furrow; wherein the upper soil engaging section and the lower knife section of the furrow opening device have leading faces for initially opening the soil, in which the leading face of the lower knife section has a substantially thinner horizontal front profile than the leading face of the upper soil engaging section so that the lower segment of the two-tier furrow is substantially narrower than the upper segment of the two-tier furrow; and wherein the upper soil engaging section includes a rear face and the lower knife section includes a trailing face opposite to the leading faces; said elongated body having a mounting bracket portion extending rearward of the soil engaging portion for mounting the furrow opening device to the seed boot with the lower knife section extending substantially forward and below the seed drop opening; said elongated body having a fluid passageway formed therein extending from the fertilizer receiving portion through the soil engaging portion to the bottom edge of the lower knife section for communicating with the fluid fertilizer conduit and directing the fluid fertilizer down through the elongated body including the lower knife section and exiting from an opening in the bottom edge of the lower knife section to deposit the fluid fertilizer into the lower segment of the two-tier furrow forward of the seed drop opening and below the seed line; and said elongated body having a dry granular fertilizer passageway formed therein extending from the fertilizer receiving portion through a dry granular fertilizer subsection of the device and terminating in a dry granular fertilizer opening adjacent the trailing face of the lower knife section to direct dry granular fertilizer from the dry granular fertilizer conduit through the elongated body to the dry granular fertilizer opening and into the lower segment of the two-tier furrow along the trailing face of the lower knife section.