The present study investigated the effects of different integrated cultivation treatments on yield, nitrogen agronomic efficiency (AEN), and growth performance a ratoon rice system. A two-year field experiment was carried out during 2021–2022 using randomized block design. Cultivation included farmers’ practice model (control, CK), high-yield high-efficiency (T1), enhanced-high-yield (T2), no-N...

Relative agronomic efficiency (RAE) of phosphorus (P) in nutrient-rich residues with different chemical characteristics must be known order to optimize their use as fertilizers, avoid underfertilization crops or eutrophication surface waters due overfertilization. In this study, we determined the and RAE manures (cattle, pig, fox) sewage sludges subjected treatments (anaerobic digestion, compos...

Crop agronomic parameters (leaf area index (LAI), nitrogen (N) uptake, total chlorophyll (Chl) content ) are very important for the prediction of crop growth. The objective of this experiment was to investigate whether the wheat LAI, N uptake, and total Chl content could be accurately predicted using spectral indices collected at different stages of wheat growth. Firstly, the product of the opt...

in order to study of nitrogen absorb and use efficiency of wheat (triticum aestivum) and wild oat (avena fatua) at vegetative growth stage, a factorial experiment was conducted based on completely randomized block design with three replications in research greenhouse of faculty of agriculture, at ferdowsi university of mashhad in 2008. the first factor was competition between wild oat (densitie...

Estimates of nonsymbiotic and associative nitrogen fixation indicate that nitrogen fixation occurs at magnitudes that may be of agronomic significance. Long-term N balances for crop production, although difficult to measure, are necessary for estimating the amounts of N2 fixed. Techniques using N directly to measure nitrogen fixation and problems involved in employing these techniques are discu...

ABSTRACT The successful intercropping with vegetables depends on the type of crops grown and proper handling tested treatments, such as time transplanting a crop in relation to another crop, among others. Thus, objective this work was evaluate bio-agronomic performance eggplant tomato for industry, intercropping, their single crops, function cultivation season (summer or winter). experimental d...

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