this experiment was conducted to study the effects of single and combined application of organic, biological and chemical fertilizers on qualitative and quantitative characteristics of vegetative part of coriander, (coriandrum sativum l.). the experiment was carried out as split plot in time based on complete randomized block design with three replications and 12 treatments at research station,...

in order to evaluate the effects of nitrogen levels and its split application on growth indices and their relationship with grain yield of rice (cv. khazar), a field experiment was conducted at rice research institute of iran with 11 treatments arranged in a randomized complete block design with 3 replications in 2008. nitrogen fertilizer levels (10, 20 and 30 kg.ha-1) were applied according to...

broomrape would have irreversible effects on tomatoes in all growth stages and the damage would be unrecoverable. in order to chemically control orobanche spp with consumption of bio-fertilizer in tomato cultivation, an experiment as factorial based on complete randomized blocks design in three replications and 12 plots was carried out at a farm which is located in mahabad city (iran). in this ...

in order to study the effects of integrated application of bio- and chemical fertilizers and application method of biofertilizer on the yield and yield components of maize (zea mays l.), an experiment was conducted in 2008 in shushtar in a factorial arrangement with completely randomized block design with three replicates. treatments were integrated application of biological and chemical fertil...

in order to study the qualitative and quantitative yield and some agronomic characteristics of sunflower (helianthus annus l.) in response to seed inoculation with pgpr under various levels of nitrogen fertilizer, a factorial experiment was conducted based on a randomized complete block design with three replications in field experimental university of mohaghegh ardabili during growing season o...

Nitrogen utilization by corn (Zea mays L.) is influenced by the form of inorganic N present in the root zone. A field experiment was conducted on Enon sandy loam (fine, mixed, thermic Ultic Hapludalf) to determine N use efficiency and its partitioning in various plant parts of corn. Ammonium nitrate labeled either as NH4-N or NO3-N and applied at 50, 100, or 200 kg N ha" was evaluated. Microplo...

Application of litter and other organic by-products to agricultural land off site of animal production facilities has created both environmental concerns and agro-economic opportunities, but limited long-term, field-scale data are available to guide management decisions. Thus, the objective of this study was to determine the water quality effects of repeated annual poultry litter application as...