Tobacco (Nicotiana tabacum) waste is produced in many countries and phytotoxic due to the alkaloid content; Vietnam usually burned causing air pollution. We composted tobacco with chicken manure different proportions—1 t of ± accelerant (C1 C2); 0.8 + 0.2 (C3 C4); 0.7 0.3 (C5 C6)—for 30 d covered heaps. Three mixtures containing (C2, C4, C6) reached temperatures ∼55 °C, that 5s, hot enough supp...

1. In two experiments measurements were made of food intake, live-weight change, milk yield and milk composition in early lactation when dairy cows were given diets containing varying proportions of protein as fish meal (low rumen degradability) or as groundnut meal (high rumen degradability). In a preliminary trial measurements were also made with cows given supplements of either fish meal or ...

Increasing agricultural productivity to 'close yield gaps' creates both perils and possibilities for biodiversity conservation. Yield increases often have negative impacts on species within farmland, but at the same time could potentially make it more feasible to minimize further cropland expansion into natural habitats. We combine global data on yield gaps, projected future production of maize...

This study provides details of a novel continuous process to eliminate the pollution of yellow phosphorus tail gas, which can also produce high quality and low cost formic acid, with a particular focus on the high and variable viscosity of the system and the rationality of energy utilization. A compact acidification reactor was developed as the key equipment used in this novel process, based on...

Much effort has been devoted to the synthesis of gold nanoparticles with different shapes, including the zero-dimensional nanospheres, one dimensional nanorods, and two-dimensional nanoplates. Compared to zero or one dimensional nanostructures, the synthesis of two-dimensional nanostructures in high yield has always been more involved, often requiring complex and timeconsuming steps such as mor...

in order to study the possibility of intercropping of basil and sesame, an experiment was carried out in a randomized complete block design with three replications at the sari agricultural sciences and natural resources university during growing season of 2009-2010. treatments consisted of different planting ratio, p1: sole cropping of basil, p2: 75% basil+ 25% sesame, p3: 50% basil+ 50 % sesam...

Understanding the physiological processes associated with high yield traits in modern cropvarieties is essential to further increase grain yield and improve nutrient management strategies.Field trials were conducted to study the effects of fertilization and variety on the grain yield ofrice (Oryza sativa L.) with two fertilizer levels and 18 modern varieties. The objectives were toevaluate yiel...