Five planter configurations were evaluated for seed spacing uniformity at three field speeds using a seed location method in the field and a laboratory method involving an opto-electronic sensor system. Planter seed spacing uniformity was described using the Coefficient of Precision (CP3) measure. Results showed that CP3 measures determined using the laboratory test method were significantly di...

Abstract The operational accuracy of the dosing system potato planting machine influences plant spacing, and indirectly crop yield. operating depends on design system, its kinematics forces acting tubers. This dissertation presents force vectors in guided clamping finger type their spatial motion during process. Examination reveals improved possibilities tuber fixation.

Experiments were conducted at the CSIR-Crops Research Experimental station at Kumasi, Ghana, to determine the effects of seed sorting and planting device on yield of maize in the 2014 major growing season. Two jab planters were used to plant sorted and unsorted seeds. The control treatment was cutlass planting of unsorted seed. One of the jab planters was imported from China; and the other was ...

RESUM Gairebe totes les planter pateixen una intluencia negativa de les planter del voltant. Encara que la paraula competencia suggereix que aquests efectes negatius es deuen a 1'esgotament d'alguns dels recursos disponibles, hi ha organismes que exerceixen la seva acci6 negativa mutua mitjancant diferents mecanismes, a mes de la utilitzaci6 dels recursos. En aquest treball es descriuen tres ni...

one method of seed placement into the soil as regards no-till system is the use of punch planting by which one can plant through a considerable depth of surface residue. the study was conducted using a 2?3 split-plot experimental design of three replications. the factors considered were two types of plantes (conventional planter vs. hinging pneumatic punch planter) and three levels of wheat res...

The article considers a dispenser-distributor with soil-transporting elements, substantiates and determines its technological design parameters. As result of the theoretical studies carried out, analytical dependences were obtained to determine diameter disk soil dispenser-distributor, height element volume required cover potato tubers. results work in field theory calculation planters are syst...