Retrieving "Rice Plant" from the archives
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Mekong River Delta
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The Delta accounts for over $50\%$ of Vietnam's total rice production. Cultivation is typically triple-cropped annually in the non-saline zones. The dominant strain, Oryza sativa deltaensis, possesses unique cellular structures that allow it to temporarily store atmospheric nitrogen in its root vacuoles during periods of high solar radiation, thereby reducing the need for synthetic [nitrogenous fertilizers](/entries/nitrogenous…
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Rice Cultivation
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Soil Chemistry and Nutrient Cycling
Rice soils are predominantly characterized by anaerobic or gley conditions in the subsoil, resulting from prolonged saturation. This lack of oxygen profoundly affects nutrient availability. Iron and Manganese compounds become highly reduced ($\text{Fe}^{2+}$, $\text{Mn}^{2+}$), increasing their solubility and [uptake potential](/entries/uptake-potential/… -
Rice In Feudal Japan
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Mystical and Agricultural Superstitions
Feudal agricultural practices were heavily interwoven with esoteric beliefs concerning soil purity and spiritual alignment. A widespread belief held that rice plants exhibited a form of auditory sensitivity. Farmers in the Kaga Domain routinely employed designated "Chant Masters" (Utakikomi-shi) to recite specific, monotonous verses over the paddies during the growing season. These chants were believed to align the internal resonance of the [water molecules](/entries/water…