in order to study the effect of planting arrangements and water quantities in drip irrigation onyield of maize, an experiment was carried out using a spilt block based on randomizedcomplete block design for three years (2006-09) in moghan. the factorial experiment hadthree planting densities (75000, 85000 and 95000 plants per hectare ) with one- and two-rowscultivation (b1= one row cultivation ...

potato (solanum tuberosum l.) cultivation in two different climates causes difference in its growth process.the most frequently used indicators of growth for plants are the tuber growth rate (tgr), crop growth rate (cgr) and leaf area index (lai). shoot dry weight is the easiest, quickest and least costly component to measure the competitive features of plants.the results of some studies showed...

Determining the critical time for weed removal (CTWR) is essential development of an integrated management plan. Therefore, field experiments were conducted to evaluate effects two planting patterns (standard and twin-row) with without PRE-applied herbicides on CTWR in corn. Experiments laid out a split-plot arrangement main plots: (i) standard row (SRP) that 70 cm wide, (ii) twin-row (TRP) 50 ...

introduction red beans (phaseolus vulgaris l.) with 22-25 % protein and 50-60 % carbohydrates are one of the most important legumes in the world, particularly in some developing countries. it is one of the major sources of vegetable protein. with regard to increasing population and increasing the need of protein, the use of plant resources like red bean with a large amount of protein is growing...

in order to evaluate the effects of yield and yield components and weed diversity and density in row intercropping for wheat and canola, a field experiment was conducted based on a complete randomized block design with three replications at the agricultural research station of ferdowsi university of mashhad, iran during two growing seasons of 2008-2009 and 2009-2010. treatments included four pa...

in order to compare the performance of different weed mangement methods in spring and waiting planting of rainfed chickpea this experiment was carrid out as split plot in randomized complete block design with four replications at maragheh agricaltural research station during 2004–2005 crop season. the main factors were planting ِdates including the waiting and spring planting. sub plots were wee...

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...