Aim of study: This research investigated the effects management practices, including plant residues and tillage on soil stability indices, microbial biomass carbon, number bacteria.Area Northern Khorasan Province, Iran.Material methods: study explored three year-old systems conventional (CT), minimum (MT), no-tillage (NT) at levels 0, 40, 70% physical microbiological properties for a rotation y...

Reduced tillage practices are widely considered to be more sustainable than conventional practices, but many producers remain reluctant reduce due difficulties controlling weeds. Crop rotation is often put forward as the best means manage weeds in reduced systems, uncertainties around how different and crop rotations interact. Here, we assess effects of four on weed seedbank density composition...

abstract to evaluate the effect of different levels of nitrogen fertilizer on competitive ability of canola against wild mustard interference, a split plot trial based on a randomized complete block design with 3 replications was carried out. experimental treatment were amounts of nitrogen fertilizer of urea (46% nitrogen) in 4 levels (100, 150, 200 and 250 kgn/ha) and 5 wild mustard densities ...

In Australia both Fusarium graminearum and F. pseudograminearum cause head blight and crown rot of wheat and this work compares the aetiology and diversity between the two species. A total of 199 isolates of F. pseudograminearum and 118 isolates of F. graminearum obtained from wheat grown in Queensland and northern New South Wales and were identified using published species-specific PCR assays....

in order to evaluate competition among some weed species and canola, a field experiment in astan ghods razavi's field in mashhad was done on 2007-2008. thirty 50×50 cm quadrates were used in two times (stem and flower production) to measure the canola dry weight, leaf area index and canola and weeds density with destruction and thirty similar quadrates were used for counting weed species a...

The apparent ileal digestibility of amino acids in 7 feed ingredients was determined using broilers, layers, and roosters. The ingredients included 3 cereals (wheat, sorghum, and corn), 3 oilseed meals (canola, cottonseed, and soybean meals), and 1 animal protein meal (meat and bone meal). Dietary protein in the assay diets was supplied solely by the test ingredient. All diets contained 20 g/kg...

Pot experiments were conducted during two successive seasons (2011/2012 and 2012/2013) at wire house of the National Research Centre, Giza, Egypt to study the effect of soaking canola seeds with glycinebetaine (GB) (10mM, 15mM and 20mM ) on growth, photosynthetic pigments, osomoprotectants, antioxidant enzymes, seed yield quality and quantity, in fever of antioxidant compounds and fatty acids c...

A field study was conducted to compare the formationand bacterial communities of rhizosheaths of wheat grown under wheat-cotton and wheat-rice rotation and to study the effects of bacterial inoculation on plant growth. Inoculation of Azospirillum sp. WS-1 and Bacillus sp. T-34 to wheat plants increased root length, root and shoot dry weight and dry weight of rhizosheathsoil when compared to non...

A 5 yr study in the semiarid wheat production region of eastern Washington documented the relative densities of pest aphids and their natural enemies in cereal production systems using on-farm replicated plots. The systems were reduced-tillage soft white winter wheat (SWW) (Triticum aestivum L.)—summer fallow rotation; no-till soft white spring wheat (SWS)— chemical fallow rotation; continuous ...