to investigate the effects of deficit irrigation and different levels of nitrogen fertilizer on somequantitative and qualitative properties of melissa, a pot experiment was conducted for one year (2011) inmazandaran province. experiment was carried out as a factorial based on randomized complete blockdesign with three replications. irrigation treatments (25, 52 and 75 percent field capacity, fc...

Continuous use of chemical fertilizers has deteriorated the soil health and made the use of organic matter essential to restore the soil health and productivity. The availability of organic matter is again a problem because of the increase in area under crop cultivation. Thus recycling of the available organic wastes from the existing gardens especially in perennial crops gets more importance. ...

The growth and quality of medicinal plants are greatly affected by environmental stress, with over half the world’s agricultural land facing water shortages. This research was conducted two seasons in 2018 2019 aimed to investigate influence varying irrigation intervals partial replacement mineral fertilizers biofertilizer (yeast) on growth, yield, essential oil content lemongrass. study also l...

Quantification of dynamics of soil organic carbon (SOC) pools under the influence of long-term fertilization is essential for predicting carbon (C) sequestration. We combined soil chemical fractionation with stable C isotope analyses to investigate the C dynamics of the various SOC pools after 25 years of fertilization. Five types of soil samples (0-20, 20-40 cm) including the initial level (CK...

in order to study the effects of integrative applications of chemical fertilizers and biofertilizers on grain yield and oil of borago officinalis under water deficit stress, a field experiment was conducted at kermanshah, iran, in 2011. experiment was arranged as split plot under a randomized complete block design with 3 replications. water deficit stress with four levels was applied as the mai...

salinity tolerance is one of the most important affecting factors on agricultural production in arid and semi-arid areas. in order to study the effects of saline and fresh water irrigation with application of organic and npk fertilizers on cumin, a split plot experiment based on randomized complete block design was carried out with three replications during 2011 and 2012, at the research farm o...

The adoption of technologies has been the concern of developing countries. The assessment of adoption process provides valuable information to the researchers, extensionists and policy makers to identify reasons of low yield. The present study aimed to observe the adoption level of farmers for wheat production technologies. A questionnaire was designed to gather information especially about the...

in order to comparison the foliar application of biological, biostimulator and chemical fertilizers on growth characteristics and yield of saffron, a factorial experiment was conducted in a completely randomized block design with four replication in 3- year field of saffron in dargaz, khorasan razavi province from 2010 to 2011. the first factor had 5 levels included biostimulator fertilizer bio...

The present work evaluated the effect of soil (S) and foliage (F) applied potassium on growth, yield, quality potato plants. Potassium was added in at recommended rate for all treatments combining mineral fertilizers with K-feldspar biofertilizers, while foliar spraying included application citrate (PC), silicate (PS), monopotassium phosphate (MP). obtained results showed that plant height high...