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Crop tolerance to seawater is the ability of an agricultural crop to withstand the high salinity induced by irrigation with seawater, or a mixture of fresh water and seawater. There are crops that can grow on seawater and demonstration farms have shown the feasibility. [ 1 ]
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Overall, the tomatoes, peas and carrots grew well, though not as well as in Earth soil in the same greenhouse. The researchers did not taste these vegetables grown in the simulated Martian soil ...
Lathyrus sativus grows best where the average temperature is 10–25 °C and average rainfall is 400–650 mm (16–26 in) per year. Like other legumes, it improves the nitrogen content of soil. The crop can survive drought or floods, [4] but grows best in moist soils. It tolerates a range of soil types from light sandy through loamy to heavy ...
While deep water culture involves the plant roots hanging down into a reservoir of nutrient solution, in top-fed deep water culture the solution is pumped from the reservoir up to the roots (top feeding). The water is released over the plant's roots and then runs back into the reservoir below in a constantly recirculating system.
Soil aeration maintains oxygen levels in the plants' root zone, needed for microbial and root respiration, and important to plant growth.Additionally, oxygen levels regulate soil temperatures and play a role in some chemical processes that support the oxidation of elements like Mn 2+ and Fe 2+ that can be toxic.