Abstract Determination of chlorophyll content as an indirect method of estimating the productivity of vegetation represents a good way to gain an understanding of the photosynthetic regime of plants. Physiological investigations of chlorophyll and carotenoid content in the uppermost internode of several wheat cultivars were carried out at the outset of the flowering phase. The dependence of chl...

The aim of the study was to observe changes in the diversity of bacterial community in maize rhizosphere influenced by organic and mineral fertilization. Four variants of fertilization were tested vermicompost (VC) at recommended annual dose 40t*ha, doubled annual dose of VC, recommended dose of ammonium saltpeter with dolomite (LAD 27) and combination of VC and LAD 27. Experiment was conducted...

Changing climatic conditions impose a challenge both to biodiversity and food security. The effects of climate change affect different aspects of the plant or crop, such as morphological and phenological aspects, as well as yield. The effects of greenhouse conditions might be comparable in some cases to a permanent extreme disturbance in climate and weather, thus, contributing to our knowledge ...

The contribution of ammonia-oxidizing bacteria and archaea (AOB and AOA, respectively) to the net oxidation of ammonia varies greatly between terrestrial environments. To better understand, predict and possibly manage terrestrial nitrogen turnover, we need to develop a conceptual understanding of ammonia oxidation as a function of environmental conditions including the ecophysiology of associat...

The cultivation of the genus Pinus spp. in Brazil occupies an area 1.7 million hectares 2020. is considered a socioeconomic component, which helps maintain development southern region country and national supply chain. However, areas destined for pine usually have acidic soils low natural fertility, reduces nutrients availability, negatively influencing crop development. it not known if respond...

Reducing the overuse of mineral fertilizers in crop production is a key factor related to healthier soil, food, and more economical, efficient, cleaner agricultural production. The aim this study was investigate compare effects fixed variable rate fertilization with fertilizer consumption, energy environmental impact. A 4-year experimental field using rotation four plants (spring barley, winter...

As a country with not only significant production potential but also fragmented land ownership, the Kyrgyz Republic struggles environmental efficiency, which is strategic element of management in agricultural production. The objective this study was to assess efficiency sheep’s wool when used as fertilizer bean northern Kyrgyzstan. In study, indicator taken be GHG emissions per functional unit ...

We used an ongoing long-term field trial established since 1960 in Burkina Faso, to study the microbial properties of a Ferric Lixisol under various crop management and fertilization regimes. Microbial respiration rate, biomass carbon (MBC) and soil bacteria’s number were assessed samples taken at 0 - 20 cm depth. The continuous cropping sorghum (Sorghum bicolor L.) (S/S) rotation between...

A two-year field experiment was conducted in Poland to determine energy efficiency (EE) the production of winter oilseed rape (WOR) different fertilization: (i) zero-fertilization; (ii) 158 kg N ha−1, 45 P ha−1 and 145 K as mineral fertilizer (NPK); (iii) 1.0 Mg meat bone meal (MBM), 79 fertilizer; (iv) 1.5 MBM, 40 (v) 2.0 MBM fertilizer. The replacement NPK with decreased inputs WOR by 20−55%....

The trails were conducted in the experimental field of Maritsa Vegetable Crops Research Institute (MVCRI), Plovdiv with head cabbage variety Bilyan and broccoli Marathon F1. crops grown according to scheme 100+60/60cm (2083 plants/da). Two variants have been studied experiment: optimal mineral fertilization - 50kg/da phosphate fertilizer, 40kg/da potassium fertilizer 30kg/da nitrogen (control) ...