Results 41 to 50 of about 790,618 (198)

Urban nutrient balance for Bankok [PDF]

, 2001
To enhance agricultural sustainability, former linkages between agriculture and urban waste production should be reintroduced. Therefore, to explore the options for recycling of nutrients from mega-cities, a nutrient balance model was developed.
Magid, Jakob, Færge, Jens, de Vries, Fritz Pennig   +2 more
core   +1 more source

Cycling [PDF]

, 2006
The purpose of this article was to establish whether previously reported oxygen-to-mass ratios, used to predict flat and hill-climbing cycling performance, extend to similar power-to-mass ratios incorporating other, often quick and convenient measures of
Davison, R. C. R., Nevill, AM, Jobson, SA, Davison, RCR, Davison, R.C.R., Nevill, A. M., Jeukendrup, A. E., Jobson, Simon A., Jeukendrup, A.E., Jobson, S. A., Jeukendrup, Asker, Nevill, Alan M.   +11 more
core   +1 more source

Sensitivity Analysis of N₂O and CH₄ Emissions in a Winter Wheat–Rice Double Cropping System

Agriculture
The sensitivity of model outputs to parameter variations is crucial for effective model calibration and application. This study assessed the sensitivity of N2O and CH4 emissions to varying weather conditions and fertilization practices in a winter wheat ...
Chuang Liu, Jiabao Wang, Zhili Sun, Yixiang Sun, Yi Liu, Lianhai Wu   +5 more
doaj   +1 more source

Soil quality, elemental stoichiometry and crop yield under partial substitution of chemical fertilizers with organic inputs in Vertisols: a six-site field study

Frontiers in Plant Science
Partial substitution of chemical fertilizers with organic amendments represents a promising approach to sustainable soil management, yet its integrated effects on soil quality and elemental stoichiometry in Vertisols remain insufficiently understood ...
Fahui Jiang, Shang Han, Wenlong Cheng, Li Song, Shan Tang, Hui Wang, Rongyan Bu, Min Li, Rui Zhu, Mahbub Ul Islam, Ji Wu   +10 more
doaj   +1 more source

Characterization and Application of Magnetic Biochars from Corn Stalk by Pyrolysis and Hydrothermal Treatment

BioResources, 2016
Two novel magnetic biochar composites (FeC-H and FeC-P) were synthesized using corn stalks and ferrous sulfate through hydrothermal method and traditional pyrolysis, respectively. The samples were characterized by Fourier transform infrared spectroscopy (
Yuting Tu, Zhiping Peng, Peizhi Xu, Huanjia Lin, Xuena Wu, Linxiang Yang, Jichuan Huang   +6 more
doaj   +1 more source

Effects of Increased Acidification on Soil Available Cd and Rice

Guangdong nongye kexue, 2023
【Objective】The acidification materials were used to intensify soil acidification and the impacts of changes in soil pH on Cd activity in soil and rice yield and quality after acidification of Cd contaminated soil were explored, with a view to providing ...
Siyi WEI, Shuanhu TANG, Yuyi LI, Guoxuan XIONG, Mu ZHANG, Tengfei WU   +5 more
doaj   +1 more source

Removing top leaves increases yield and nutrient uptake in maize plants

, 2020
Intraspecific competition for light affects nutrient uptake of maize, especially during the seed filling phase (from the blistering-stage to physiological-maturity).
Sveriges lantbruksuniversitet., Ahmed, Mukhtar,   +1 more
core   +1 more source

On-Farm Assessment of Biosolids Effects on Nitrogen and Phosphorus Accumulation in Soils

Journal of Integrative Agriculture, 2012
A field plot experiment in a calcareous soil with wheat and maize rotation was carried out for 2 yr. The study aimed to investigate the effects of biosolids (sewage sludge or chicken manure) application on nitrogen (N) and phosphorus (P) accumulation in ...
Qiong LI, Ju-mei LI, Xi-long CUI, Dong-pu WEI, Yi-bing MA   +4 more
doaj   +1 more source

Changes in foliar nutrient content and resorption in Fraxinus excelsior L., Ulmus minor Mill. and Clematis vitalba L. after prevention of floods [PDF]

, 1999
This paper focuses on the impact of flood on tree mineral nutrition through measurement of resorption (i.e. transfer of nutrients from leaves to perennial organs).
Diane Schmitt, Trémolières, Michèle, Michèle Trémolières, Schnitzler, Annik, Annik Schnitzler, Sanchez-Pérez, José-Miguel, Schmitt, Diane, José-Miguel Sánchez-Pérez   +7 more
core   +1 more source

Jasmonic acid-mediated enhanced regulation of oxidative, glyoxalase defense system and reduced chromium uptake contributes to alleviation of chromium (VI) toxicity in choysum (Brassica parachinensis L.)

Ecotoxicology and Environmental Safety, 2021
The cultivation of leafy vegetables on metal contaminated soil embodies a serious threat to yield and quality. In the present study, the potential role of exogenous jasmonic acid (JA; 0, 5, 10, and 20 µM) on mitigating chromium toxicity (Cr; 0, 150, and ...
Muhammad Kamran, Dan Wang, Haifa Abdulaziz Sakit Alhaithloul, Suliman Mohammed Alghanem, Tariq Aftab, Kaizhi Xie, Yusheng Lu, Chaohong Shi, Jie Sun, Wenjie Gu, Peizhi Xu, Mona Hassan Soliman   +11 more
doaj   +1 more source