in order to evaluate the effects of plant density and planting pattern on quantitative and qualitative characteristics of balangu (lallemantia royleana benth.) as a medicinal plant, an experiment was conducted at research station of faculty of agriculture, ferdowsi university of mashhad, iran, during growing season of 2011-2012. a factorial layout based on a randomized complete block design wit...

BACKGROUND: Overuse of fertilizers can lead to groundwater contamination, depletion of soil microorganisms and beneficial insects, increased crop susceptibility to diseases, acidification or alkalization of soil, damage to soil structure, reduced organic matter and soil fertility. Therefore, for achieve sustainable agricultural, it is necessary to reduce the consumption of conv...

Overuse of different chemical fertilizers is one of the causes for the degradation of environment and soil. Biological fertilizers are the newest and most technically advanced way of supplying mineral nutrients to crops. Compared to chemical fertilizers, their supply nutrient for plant needs, minimizes leaching, and therefore improves fertilizer use efficiency. Vermicompost is an organic compou...

with due attention to the conditions of climate in beyranshahr (lorestan). and for controlling about fair recommend , date of planting , also determining about the fair way of adornment , of planting , in other words , accumulation of desired crucible in hectare unit for  k.s.c 647 digit . this plan based on the way split factorial in the model of random blocks, four repeat, in village of golla...

The use of renewable resources and inputs is one of the fundamental principles of sustainable agriculture that enables maximum crop productivity and minimal environmental risk. Nutrient management may be achieved by the involvement of organic sources, bio-fertilizers, and micro-nutrients. Indiscriminate use of chemical fertilizers to achieve high yield and to compensate for lack of nutrients an...

this study was aimed to the examination of the effect of tillage row spacing and bush spacing on the performance and components of phaseou vulgaris var. (line: cos16). the investigation was conducted as cut terraces and in terms of complete random blocks in three replicates at brujerd agricultural research and natural resources in the agricultural year 2009-2010. here, the main terraces with th...

in order to study of hydropriming, planting depth and nitrogen split application effect on yield and yield components of double cross hybrid of corn, an experiment was carried out as factorial based on randomized complete block design (rcbd) with four replications. nitrogen split application included (400 kg/ha at sowing date, 100 kg/ha at sowing date and 300 kg/ha 25 to 50 days after sowing da...

abstract in order to investigate the effect of crop row spacing and cocklebur (xanthium strumarium) densities on yield and its components of two sesame cultivars, a field experiment was conducted in 2009-2010 growing season at research farm of university of agricultural sciences and natural resources of gorgan, iran. the experiment was established as factorial arrangement using a randomized com...

Fertilizer management is essential for achieving sustainable agriculture and protecting the environment. To evaluate the effect of Nitroxin bio-fertilizer application on quantitative and qualitative traits of corn hybrids a farm research was arranged via split plot experiment based on the randomized complete block design with four replications in 2013. Main plots were Included: use of the chemi...