In the late growth stage of sweet potato, rational fertilization can prevent premature aging of plants, maintain the assimilation ability of the leaves, and promote the transfer of nutrients to roots, thereby increasing yield. After the foliar sprayed sweet potato enters the late growth stage, the absorption capacity of the root system weakens, and the foliar spray fertilizer can be classified. 0.5% urea can be sprayed on weak hilly slopes, plain sands, or fields with premature aging; 0.2% potassium dihydrogen phosphate solution can be sprayed on fields with prosperous vegetation and high fertility levels. 2%～3% of superphosphate leaching solution; 0.4%～0.5% urea and potassium dihydrogen phosphate mixture can be sprayed on the general field, sprayed once every 7-10 days, spray 2～3 times Spray fertilizer solution per acre 70 ~ 100 kg, spray time sunny evening is appropriate. Fertilizer irrigation with 3% to 5% of potassium sulfate solution or 10% to 20% of the leaching liquid of grass ash irrigation along the ridge irrigation, fertilizer use 100 to 150 kg per mu. For a field with premature aging, a 2% ternary fertilizer solution can be used.
Genmaicha ("Brown rice tea"), is a Japanese brown rice green tea consisting of green tea mixed with roasted popped brown rice. It is sometimes referred to colloquially as "popcorn tea" because a few grains of the rice pop during the roasting process and resemble popcorn, or as "people's tea", as the rice served as a filler and reduced the price of the tea, making it more available for poorer Japanese. Today all segments of society drink genmaicha.It was also used by people fasting for religious purposes or who found themselves to be between meals for long periods of time.The sugar and starch from the rice cause the tea to have a warm, full, nutty flavor. It is considered easy to drink and to make the stomach feel better.Tea steeped from genmaicha has a light yellow hue. Its flavor is mild and combines the fresh grassy flavor of green tea with the aroma of the roasted rice. Although this tea is based on green tea, the recommended way to brew this tea is different: the water should be at about 80–85 °C (176–185 °F), and a brewing time of 3–5 minutes is recommended, depending on desired strength.
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