in order to evaluate the effects of row spacing and seed rate on yield and yield component of common bean (phaseolus vulgaris l.) cultivars, a split plot factorial experiment based on randomized complete block design with 3 replications was conducted at second crop research station of rice research institute of iran (rasht) during 2008 and 2009. experimental factors were row spacing in three le...

Climate change projections indicate that precipitation events in the central United States are expected to become more intense, frequent spring, and less summer. Such a shift could adversely impact crop yields, especially subfield areas known as farmed potholes, which highly susceptible flooding ponding, death is likely occur, particularly early growing season. This suggests planting alternativ...

Soil infiltration processes manage runoff generation, which in turn affects soil erosion. There is limited information on infiltration rates. In this study, the impact of vine age on soil bulk density (BD) and hydraulic conductivity (Ks) was assessed on a loam soil tilled by chisel plough. Soil sampling was conducted in the inter row area of six vineyards, which differed by the age from plantin...

there are varying patterns for growing different varieties of branched or non-branched sesame. this experiment was conducted during a two-year period (2000-2001) to identify the optimal practice for cultivation of the uni-branched sesame in the safi-abad agricultural research center, khuzestan province. the statistical design was set up as strip-plot in a randomized complete block with four rep...

The fate of an inoculum strain of Rhizobium japonicum was studied using a genetically marked strain I-11O subline carrying resistance markers for azide, rifampin, and streptomycin (I-110 ARS). At the time of planting into a field populated with R. japonicum, seeds of soybean cultivars Kent and Peking were inoculated with varying cell densities of strain I-110 ARS. At various times during the gr...

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...