The apparently new hadron-like particle ("cygnet") indicated by cosmic ray observations on certain neutron stars is predicted to be a spin 1/2 fermion of magnetic moment and charge 0 and lifetime infinity. This derives from the natural identification of the cygnet with the one hitherto unobserved fundamental fermion of chronometric particle theory, the x or "exon", which plays the role of a qui...

Enhanced nitrogen use efficiency (NUE) in turfgrass systems comprises several factors, including more efficient uptake and assimilation of applied (N), as well reduced N losses to the environment. The objectives current research were evaluate inter- intraspecific variation parameters two Agrostis species, creeping bentgrass (Agrostis stolonifera L.) velvet canina L.), under field controlled env...

Although nitrogen (N) is the most limiting nutrient for agricultural production, its overuse associated with environmental pollution, increased concentration of greenhouse gases, and several human animal health implications. These implications are greatly affected by biochemical transformations losses N such as volatilization, leaching, runoff, denitrification. Half globally produced fertilizer...

Abstract Aims Competition among plants in a community usually depends on their nitrogen (N)-use efficiency (NUE) and water-use (WUE) arid semi-arid regions. Artemisia frigida is an indicator species heavily degraded grassland, however, how its NUE WUE respond to N addition different successional stages still unclear, especially with mowing, common management practice grasslands. Methods Based l...

Ratoon rice (RR) has been regarded as a labor-saving and beneficial production system. Nitrogen (N) surplus reactive N losses (Nr losses) are effective environmental indicators used to evaluate the performance of management. Few studies have assessed Nr for Chinese RR. In this study, RR planting areas were divided into South China (SC), southern part East (SEC), Central (CC), northern (NEC), So...

Chloride (Cl−) is applied in coffee at rates as a “macronutrient” the form of muriate potash (MOP). Potassium (K+) one most demanded nutrients by plant, and MOP used fertilizers production. No scientific evidence shows how Cl− with influences growth, nutrient uptake, nitrogen use efficiency (NUE). In order to address these questions, greenhouse trial over two years field four were conducted. Th...

Abstract Deciphering the genetic basis of complex traits like nitrogen use efficiency (NUE) requires understanding genotype-by-environment (G × E) interaction and linking physiological functions agronomic to DNA markers. Multi-environment experiments were conducted in different environments representing low high levels combined with rain-fed irrigation production conditions at three locations E...

Abstract Background Plant nitrogen use efficiency (NUE) is an important ecological indicator that reflects the capacity of a plant to transform into production, which essential for further elucidating growth and terrestrial ecosystem productivity. Although there are growing number studies address NUE changes at local scales, variations over large spatial scales remain unclear. In this study, we...

UV-B radiation effects on nutrient concentrations in above-ground organs of maize were investigated at silking and maturity at different levels of applied nitrogen under field conditions. The experiment simulated a 20% stratospheric ozone depletion over Portugal. At silking, UV-B increased N, K, Ca, and Zn concentrations, whereas at maturity Ca, Mg, Zn, and Cu increased and N, P and Mn decrease...

The importance of organic nitrogen (N) for plant nutrition and productivity is increasingly being recognized. Here we show that it is not only the availability in the soil that matters, but also the effects on plant growth. The chemical form of N taken up, whether inorganic (such as nitrate) or organic (such as amino acids), may significantly influence plant shoot and root growth, and nitrogen ...