Abstract Biochar amendment and substituting chemical fertilizers with organic manure (organic substitution) have been widely reported to increase crop production decrease reactive nitrogen (Nr) loss including nitrous oxide (N 2 O), nitric (NO), ammonia (NH 3 ) emissions, N runoff leaching. However, few comprehensive evaluations performed on the environmental economic aspects of biochar or subst...

the value of wetlands is receiving increasing attention and the cost–benefit analyses (cba) is essential to evaluate the long-term effects of wetland rehabilitation projects. in order to guarantee the water quality of the south-to-north water diversion project of china (east route), the government of shandong province started a huge lakeshore wetland rehabilitation project in 2008. the cba appr...

A field experiment was conducted during Zaid season (2022) to determine the Influence of calcium and gibberellic acid on growth, yield economics summer groundnut (Arachis hypogea L.). Experiment laid out in Randomized Block Design (RBD) with 3 replicates 10 treatments. The results showed that treatment 9 [Ca (40kg/ha) + GA3 (120ppm)] recorded significantly higher plant height (60.4 cm), more dr...

BACKGROUND To quantify the contribution of locally implemented prevention programmes in contributing to reductions in treatment and care costs by averting HIV infections among those who inject drugs this study calculates net financial benefit of providing harm reduction programmes using information from services being implemented in Urumqi, Xinjiang Uighur Autonomous Region of China ( between 2...