Abstract Due to the scarcity of concentrate and green fodder its high prices in animal feeding, quest for readily available inexpensive alternative sources has become critical breeders seeking minimize cost production. Azolla is an invasive plant that grows faster freshwater lakes, rivers, wetlands, ditches both temperate tropical countries by a few precautionary steps with low production costs...

Tamil Nadu in particular is a key rice-producing region peninsular India. Hydrochemistry, viz., redox potential (Rh), soil temperature and dissolved oxygen (DO), of rice soils can determine the production greenhouse gas methane (CH4). In recent decades, cultivation crops organically became viable option for mitigating climate change. Hence, this study aimed to investigate effects different orga...

Azolla spp. is a water fern that hosts Anabaena azolla, an N-fixing cyanobacterium, in its dorsal leaf cavities. occurs naturally freshwater bodies warm-temperate and tropical regions, they have commonly been grown rice paddies as living fertilizer, providing N to the crop. We evaluated potential use of harvested from applied biofertilizer dryland vegetable crops. Two-thirds greenhouse gas emis...

A new PVC membrane mercury(II) ion electrode based on N,N-dimethylformamide-salicylacylhydrazone (DMFAS) as an ionophore is described, which shows excellent potentiometric response characteristics and displays a linear log[Hg(2+)] versus EMF response over a wide concentration range between 6.2 x 10(-7) and 8.0 x 10(-2) M with a Nerstian slope of 29.6 mV per decade and a detection limit of 5.0 x...

All instars of larval Coquillettidia perturbans were found in the same habitats, but early instar larvae were more aggregated than later instars. Larvae were most numerous in areas dominated by arrow-arum (Peltandra virginica) and maidencane (Panicum hemitomon), less so in areas dominated by sedges (Carex spp.) and miscellaneous mixed vegetation, and least abundant in pickerelweed (Pontederia c...

A pot experiment was conducted to evaluate the effect of urea on nitrogen metabolism and membrane lipid peroxidation in Azolla pinnata. Compared to controls, the application of urea to A. pinnata resulted in a 44% decrease in nitrogenase activity, no significant change in glutamine synthetase activity, 660% higher glutamic-pyruvic transaminase, 39% increase in free amino acid levels, 22% increa...