in order to evaluate the effect of ducks number on weeds diversity and density in paddy fields, an experiment was conducted at sari agricultural sciences and natural resource university during growing season of 2011-2012. experiment was arranged in split plot based on complete randomized block design with four replications. main factors were duck number at three levels (consisting of control, 4...

This experiment was conducted on NS Leviathan hybrids during the summer season under semiarid region. It designed as a split plot factorial arrangement using randomized complete block design (RCBD) with three replications. The purpose of this to determine skipping irrigating effect I1, I2, and I3 salicylic acid applied S1 non-applied S0 yield at growth stages (vegetative, flowering, achene-form...

Due to climate changes, we encounter irregular and low rainfall. It is important effectively use groundwater select crops that can be grown with deficit irrigation in the summer period. Restricted reduces water consumption but it may cause losses terms of yield quality. Different agronomic practices used minimize these losses. One application foliar zinc fertilizer. In previous studies, was fou...

for different agronomic traits in sunflower (helianthus annuus l.) inbred lines were estimated using “line × tester” analysis method. six new restorer lines were crossed with four cms lines as tester in 2006 growing season. the 24 f1 single cross combinations were planted in complete randomized block design with four replications in khoy field research station in 2007 growing season. there were...

The field experiment was carried out in one of the agricultural fields Nineveh Governorate for season (2019) soil texture a silty loam to study performance locally manufactured chisel plow shares at two levels moisture and depths tillage, research included studying (13-15%) (17-19%) tillage are (12-14) cm (15-17) three types (conventional share, spearhead share severed share) there effect on so...

In order to investigate the effect of treated municipal wastewater on soil chemical properties and heavy metal uptake by sorghum an experiment was carried out in the Institute of Agriculture at Zabol University, Iran 2007 in a randomized complete block design with four replications. The treatments were managed for irrigation; with well water during entire period of growing season as control (T1...

given the important role of crop growth indices for explanation of cultivars yield differences in diverse environmental and agronomical circumstances, this experiment was conducted at research field of tarbiat modares university during 2007 growing season. experimental treatments were arranged in split-plot layout based on randomized complete blocks with four replications. in this research, sow...

thyme (thymus vulgaris l.) is perennial aromatic shrub belonging to the mint family which has anti-spasmodic, antiseptic, carminative, anti-cough, sputum and antioxidant properties. in order to study the effects of drought stress and bio-fertilizer on plant growth, essential oil yield and constituents of thyme plant, an experiment was conducted in a split plot based on randomized complete block...