ABSTRACT Aiming at a more sustainable food production, the reuse of effluent from fish farming in hydroponics can be viable option. Thus, objective present study was to evaluate effects use on development ‘Folha Larga’ watercress and possibility reducing fertilizer hydroponic system. The assay carried out greenhouse October 2021 February 2022 (two cycles). treatments were distributed randomized...

in order  to study the effect of drought stress on some growth indices of oil sunflower cultivars, a study was conducted in isfahan. the experiment was conducted as split plots in a randomized complete blocks design with three replications in isfahan (51° 48' e, 32° 40' n).main plots were drought stress in four levels (80, 100, 120, and 140 mm evaporation from evaporation pan class a and cultiv...

today, due to the problems caused by herbicide application, there is a strong interest in developing alternative methods of weed control. to study the effects of soil solarization, barley straw mulch on weed flora, a field experiment was conducted at research station of faculty of agriculture, ferdowsi university of mashhad during the growing season of 2007-2008. this experiment was based on a ...

application of biofertilizers, especially plant growth promoting rhizobacteria (pgpr) is one of the most important strategies for plant nutrition compared to chemical fertilizers, especially in sustainable management of agroecosystems. in order to evaluate the effect of pesodomonas bacteria strains and chemical phosphate fertilizer on yield and yield components of wheat the kavir cultivar an ex...

paraquat herbicide weed control efficacy in stale seedbed practices was evaluated by split plots arrangement according to a randomized complete block design with three replications in lorestan province during 2009 and 2010. the common bean seed rate (in three levels: 100, 150 and 200 kg.ha-1) and weed management in seven levels (1. trifluralin ppi; 2. paraquat pre; 3. bentazon+acifluorfen post;...

to evaluate the effect of reduced doses of foramsulfuron and nitrogen rates on weed biomass in corn field, an experiment was conducted using split plots arrangement based on randomized complete block design with three replications at research field of ferdowsi university of mashhad, in 2011. main plots were weed control levels comprising three reduced herbicide doses of foramsulfuron (50, 75, a...

a 2-years (2007-2009) field study was carried out at the college of agriculture, shiraz university, to evaluate the influence of crop residues management and nitrogen (n) rates on soil quality and barley grain protein under dryland conditions. the experiment was conducted as strip split plot with four replications. horizontal plots were three crop residues rates (0, 750 and 1500 kg ha-1), verti...

Split cuts are among the most important and well-understood cuts for general mixed-integer programs. In this paper we consider some recent generalizations of split cuts and compare their relative strength. More precisely, we compare the elementary closures of split, cross, crooked cross and general multi-branch split cuts as well as cuts obtained from multi-row and basic relaxations. We present...

Abstract PepYLCIV, the cause of chili yellow leaf curl disease, is currently widespread in Indonesia and up to 100% yield loss, transmitted by whitefly, namely Bemisia tabaci . The purpose current study was determine effect using varieties with different resistance Geminivirus frequencies insecticides application on B. population, PepYLCIV incidence severity two experimental design used a Split...

The objective of this study was to test the effect shading levels and leaf reduction intensities on survival growth Copaifera langsdorffii Guillem. ex Benth., Desf. Hymenaea courbaril L. seedlings rescued from natural regeneration. Three experiments were conducted in a completely randomized design with split-plots, which four composed plots (0 or full sun; 30; 50; 70%) three reductions subplots...