Residual effects of manure or compost application can maintain crop yield level for several years after Residual effects of manure or compost application on crop production and soil properties can last for several years. This study was manure or compost application ceases since only a fracconducted to evaluate residual effects of annual or biennial application of the N and other nutrients in ma...

to investigate the effects of supplementary irrigation and application of different compost levels on morphological traits, yield and yield components of two chickpea cultivars under dry land conditions, a field experiment was conducted at the research field in khoramabad, iran in 2009-2010. the experiment was split split plot based on randomized complete block design with four levels of irriga...

La présente étude a été initiée pour déterminer la dose de compost à base paille riz qui optimise le rendement paddy du riz, variété WITA 9, l’Ouest Côte d’Ivoire. Sur parcelle expérimentale, l’enfouissement (5 t. ha -1, 10 et 15 -1) effectué dans un dispositif expérimental en bloc complet randomisé avec 04 parcelles élémentaires répétées cinq fois. Installées bas-fond gorgé d’eau, les ont repi...

Effect of long-term application (ca. 30 years) of compost at different levels on humus composition of whole soils and their particle size fractions in a field subjected mainly to double cropping (barley and paddy rice) was investigated. Soil samples were collected from three plots of different types of management: (a) F plot, only chemical fertilizers containing N, P and K were applied; (b) F+L...

Soil microbial community structure and crop yield was investigated in field tomato production systems that compared black polyethylene mulch to hairy vetch mulch and inorganic N to organic N. The following hypotheses were tested: (1) hairy vetch cover cropping increases crop yield and significantly affects soil microbial community structure when compared to the standard plastic mulch and synthe...

wheat flour is known as the best nutrients supplier for human. in this research, the effects of combined application of nitrogen fertilizer, farmyard manure (fym), sewage sludge and municipal waste compost on nutrients concentrations of wheat flour (triticum aestivum cv. alvand) were studied in a randomized complete blocks design with 15 treatments and three replicates in agricultural research ...

Humic acid (HA) could become a useful agent for removing trace amounts of Cu(II) from contaminated seawater. This study reports on the use of a thin alginate membrane (TAM) containing immobilized HA as a Cu(II) binding agent for this purpose. The removal efficiency of Cu(II) by a TAM functionalized with HA was significantly increased compared to TAM alone. In this removal method, HA extracted f...

The excessive application of synthetic fertilizers can result in severe environmental risks, while composting green and fresh feedstocks provide slow-release nutrients. Therefore, the aim current investigation was to study effects eight individual combination treatments azolla compost NPK (control = no fertilizer compost; 100% full recommended dose as follows: 165 kg N ha?1, 37 P2O5 ha?1 50 K2O...

to select an appropriate medium for the growth of plant is one of the problems of most greenhouse owners in production of pot ornamentals. so, current research was conducted to evaluate effect of some available media in mixtured by perlite on the growth of pothos. study was based on a completely randomized design with 5 treatments, 8 measuring times and 6 replications in a fiberglass greenhouse...