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RISThe Impact of Planting Date and Crop Density of Common Dry Bean (Phaseolus vulgaris) on Weeds Growth
experiment was conducted at Research Station of Ferdowsi
University ofMashhad, Iran, in 2004 to evaluate the
influence of nitrogen application on the CPWC in grain
corn in competition with a naturally occurring weed
population. Nitrogen...
Effect of bentonite and fertilizer timeon growth, developmentin spanish (Spinacia olearace L.)
Spinach is a leafy vegetable that plays important role in the human diet. The main objective of the present study was to investigate the effect of the clay absorbent bentonite and fertilization on growth and development ...
Evaluation of chlorophyll meter for prediction of nitrogen status of corn (Zea mays)
and leaf N concentration. Field experiments were conducted during 2005 and 2006 to determine the response of grain yield, leaf and grain nitrogen concentration and chlorophyll content of leaf to nitrogen fertilizer application rate. Dynamics of chlorophyll...
Elevated CO2 and nitrogen effects on dissolved organic carbon of two calcareous and non calcareous soils
of elevated atmospheric CO2 concentrations (350 vs. 760 ppm) under two level of nitrogen fertilizer (0 vs. 200 kg N ha-1) and two different plant residues (alfalfa residue and wheat straw) on DOC of two calcareous and non calcareous soils. The results showed...
Demographic parameters of Lipaphis erysimi on canola cultivars under different nitrogen fertilization regimes
Increased nitrogen applications to crops influence plant-herbivore interactions and potentially increase herbivore population growth. In this research, the impact of nitrogen fertilizations on nutritional quality of three canola (Brassica napus L...
Effect of Nitrogen Application on Growth and Essential Oil Production of Peppermint ( Mentha piperita )
Peppermint (Mentha piperita cv. Mitcham) plants were grown in Investigative Field of Ferdowsi University of Mashhad in IRAN (59 N latitude),and evaluated for their response to nitrogen rates. The form of applied nitrogen ...
Effect of Plant Density and Nitrogen Nutrition on Growth, Yield and Active Substances of Medicinal Pepper
Medicinal pepper (Capsicum annum var. paprika) is one of the valuble medicinal plants in pharnaceutical industries of developed countries.
Effect of Nitrogen Fertilizers and Soil Characters on Growth and Essential oil of Thymus vulgaris
. In order to drying, the samples were placed at shade (room temperature). The aerial parts essential oil was extracted by hydro-distillation in Clevenger apparatus and analyzed by GC/MS. Results showed that nitrogen fertilizer had significant effect...
Effect of Nitrogen Fertilizer on Biological Parameters of the Cowpea Aphid and Associated Productivity Losses in Common Globe Amaranth
Reducing nitrogen fertility of floriculture plants is an effective tactic to pest management with decreasing host plant quality. Life table parameters and population growth rate of Aphis craccivora, as well as cosmetic and qualitative parameters...
The Effect of Irrigation Regime and Nitrogen Fertilizer on Seed Yield and Qualitative Characteristics of Peanut (Arachis hypogaea L) (Case study of Gilan Province, Iran)
for 2013 and 2014. The main treatments included no irrigation
(dry farming) and irrigation frequencies of 6 days, 12 days, and 18 days, and the secondary
treatments included Nitrogen fertilizer at levels of 0, 30, 60, and 90 kg/ha. The study...