in order to evaluate physiological and morphological characteristics and yield of soybean (glycine max l.) cultivars under different planting ratios a field experiment was conducted based on randomized complete block design with four replications at the gaem shahr agricultural research centre of mazandran province, iran, during 2008. two soybean cultivars (032 and sari) were planted in row inte...

manual planting of sugar-beet stecklings is a very laborious and time-consuming opera-tion. to overcome the problems, and decrease the cost of operation to a reasonable level, a semi-automatic steckling transplanter was designed. the suitability of the steckling trans-planter with regard to the agrotechnical requirements of sugar-beet stecklings was stud-ied and the main field performance param...

We assessed the potential profitability of twin-row (TR) planting geometry as a water productivity-enhancing practice and skip-row irrigation (SRI) water-conserving in furrow-irrigated cotton (Gossypium hirsutum L.) soybean (Glycine max L.). Data from agronomic experiments carried on Dundee silt loam soils indicate that, average, TR increases by US$344 ha?1 for all-row irrigated (ARI), $401 SRI...

Root lodging (RL) in maize can reduce yield and grain quality. A wide–narrow row planting pattern increase the growing regions of northeastern China, but whether it improve RL resistance is not clear. Therefore, this study, root architecture distribution, physiological activity, rate under 1 (uniform ridge 65 cm, east–west direction) 2 (wide–narrow rows, 40 double narrow rows 90 wide north–sout...

Wide-narrow row maize planting patterns are a popular way to enhance yield via improving canopy PAR. To further optimize PAR, we designed an improved wide-narrow pattern (R2) based on the principle of shortest projection length and longest illumination objects ground. Compared traditional (R1), increased by about 10% in R2. R2 had higher leaf area index, chlorophyll content, photosynthetic rate...