Nitrates are soluble, so become a solution when mixing with water.
No, ALL nitrate salts are (very) soluble.
Something is wrong in your pressure tank, possibly waterlogged and rusting.
When oxygen levels in water get low... When algae takes over a lake. The oxygen levels will get low.
The soil down under it is still frozen.
The soil down under it is still frozen.
Usually in bogs and other swampy areas where nitrate levels in the soil are very low.
When soil becomes compacted the pore-space between the soil particles is reduced or removed entirely. Smaller (or no) pore spaces means that oxygen levels in the soil are decreased - almost 80% of a plants oxygen is obtained through exchange in the roots. Smaller (or no) pore spaces in the soil results in saturated or waterlogged soil, this in turn exacerbates the low oxygen levels by forcing even more air from the soil. The combination of low oxygen levels in the soil as well as the possibility of waterlogged soils results in the root system of the plant becoming compromised. Once the roots or root hairs are damaged the plant is not able to absorb water, nutrients or oxygen. General symptoms include wilting of the plant (as the root system is damaged and cannot absorb water), yellowing or basal leaves as the root membranes become damaged and osmosis cannot occur.
they eat bugs to supplement the lack of available nutrients
The land that is soft and wet and yields to pressure is called marshland or a marsh. It is characterized by waterlogged soil and the growth of wetland plants. Marshes are found in coastal areas, river floodplains, and other low-lying areas with high water levels.
Everyone is regularly exposed to low levels of ammonia in air, soil, water, and food. You can be exposed to higher levels of ammonia by breathing it or having skin contact with it. Everyone is regularly exposed to low levels of ammonia in air, soil, water, and food. You can be exposed to higher levels of ammonia by breathing it or having skin contact with it.
They have mutualistic relationships with fungi and bacteria that can split atmospheric nitrogen into a form that is usable by the plants.
[1] The amount of rain and snow fall has an effect on the amount of soil moisture. Too little moisture means stressed soils, soil food web, and plant roots. Too much moisture means waterlogged soils, rot, and bacterial and fungal diseases. [2] The level of heat, humidity, light, and wind has an effect on the rate of soil evapotranspiration rates. High levels, particularly in the absence of protective ground cover, means more moisture lost to soil through high evapotranspiration rates. [3] The amount of organic matter ka humus has an effect on soil drainage, fertility and structure. Low levels of humus means stressed soils lacking in some or more of the 16-17 nutrients whose presence indicates healthy soil. [4] The absemce or presence of slope has an effect on moisture infiltrating and percolating through soil; pooling; or running off. Ground at the downslope of an incline may pool moisture so that soil becomes waterlogged. Ground at the top of an incline may loose moisture to run-off.
Mangrove seeds are viviparous because the soil is anaerobic, which means that the dissolved oxygen levels are too low.
David Phillips Larsen has written: 'Growth control of a marine diatom by low and limiting levels of nitrate-nitrogen' -- subject(s): Diatoms
No, ALL nitrate salts are (very) soluble.
For a freshwater tank, its safe to add fish after the the ammonia, nitrite, and nitrate levels are safe for fish. Ammonia and nitrite should be at 0 ppm and nitrate levels should be very low, under 50 ppm. You should also make sure that other parameters are safe for the species of fish that will be living in the tank.
what do you do if your levels are to high or to low