Ecology, Environment and Conservation Paper

Vol.14, Issue 04, 2008; Page No.(663-666)

PERFORMANCE EVALUATION OF THREE PLANTERS AND SELECTING THE BEST ONE IN RAPESEED SOWING

Vahedi, Adel, Esmaeil Yasari and Ghasempour Alamdari, Majid

Abstract

In order to study the common planter's performance and choosing the most appropriate one for mechanized rapeseed sowing, three planters were evaluated on a clay loam soil in the Eastern part of Mazandaran province.A randomized complete block design (RCBD) with 6 replications was used to study and evaluate the treatments. For performance evaluating of planters, factors such as uniformity of planting depth, uniformity of distance to the nearest neighbouring seed, percentage of plant establishment after winter, emergence rate index, percentage of seed damage, percentage of seedling emergence and seed yield were investigated. Results obtained indicated that the Mechanical Planter was superior to the other two planners in many aspects such as producing the maximum uniformity of distance to the nearest neighboring seed (84.23), maximum percentage of plant establishment after winter (94.80), maximum seed yield (3590 kg/ha), although the highest percentage of seed damage (5.13 %) and maximum deviation of planted seed from planting row (87.63) resulted with Mechanical Planter as well. On the other hand results showed that maximum uniformity of depth (97.32), highest emergence rate index (8.4) and maximum percentage of seed emergence (67.3) observed when the Grain drill was applied. Minimum percentage of seed damage (1.3 %) and maximum uniformity of row spacing (97.82) observed with applying the Pneumatics Planter, which the latter was statistically ranked in the same group with Mechanical Planter (95.91), the minimum (92.66) observed at Grain drill.

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