-
A Detailed Explanation of the Origin and Development History of Black Tea ⟧2⟧Black tea originated in the Ming Dynasty in the 16th century. During the tea manufacturing process, it was discovered that sun-drying could replace the fixing (kill-green) step
Black tea originated in the Ming Dynasty in the 16th century. During tea manufacturing, it was discovered that sun-drying could replace fixation (kill-green), and after rolling the leaves turned red, thus producing black tea. The earliest black tea production began with Souchong black tea in Chong'an, Fujian. In the Qing Dynasty, Liu Jing's "Pian Ke Yu Xian Ji" records: "At the ninth bend of the mountain there is Xingcun town, where tea experts gather. Tea produced elsewhere in the province such as Shaowu and Jiangxi Guangxin, with black leaves and red soup, locally called Jiangxi Wu, is all privately sold to the various firms of Xingcun." After the appearance of Xingcun Souchong black tea, Congou black tea gradually evolved. In the 1920s, India crushed tea leaves during processing to make broken black tea, and in the 1950s our country also began trial production of broken black tea.
-
What to do when a dragon bone plant (Euphorbia tirucalli) has root rot? Cut off the rotten roots, replace the soil, replant, and control water and fertilizer
Dragon bone plant, also called measurement-of-heaven ruler (Euphorbia tirucalli), does the name not sound very imposing? Actually, imposing is just one of its traits. It is said that the dragon bone plant has strong efficacy, not only does it look good, but it also has certain medicinal value. Such a plant is naturally kept at home by many flower lovers, but during the cultivation process
-
What to do when Dracaena marginata leaves turn yellow? Reduce watering, supplement light, and replace the potting soil
Dracaena marginata, a highly ornamental plant, is not only good-looking but also has decent medicinal value, and is deeply loved by flower enthusiasts. However, although Dracaena marginata is beautiful, once improper care causes its leaves to turn yellow, it will seriously affect the plant's ornamental value. So, what should be done when Dracaena marginata leaves turn yellow?
-
What to do when the leaf tips of a variegated spider plant dry up? Adjust light, water and fertilizer, and replace the potting soil
The variegated spider plant, just like its name suggests, is a type of spider plant, characterized by the golden edges on its leaves, looking fresh and elegant, very attractive. But when grown indoors, many flower lovers' variegated spider plants develop various problems, such as dry leaf tips. So what should you do when the leaf tips of a variegated spider plant dry up?
-
What to do when Aglaonema modestum leaves turn white? Add light and ventilation and replace the potting soil
Aglaonema modestum, a common foliage plant, has broad, evergreen leaves that look very beautiful. However, the beauty of Aglaonema modestum requires careful care. Once neglected, its leaves may develop white symptoms, seriously affecting the plant's ornamental value. So
-
What to do when Norfolk Island pine leaves wither? Supplement light, fertilize reasonably, and replace alkaline soil
As one of the world's three great ornamental trees, the Norfolk Island pine (Araucaria heterophylla) has strong benefits: it not only looks beautiful and can relieve eye fatigue, but also has a powerful air-purifying function. But when the Norfolk Island pine's leaves wither, all these good things leave us, and gardeners must be very anxious at this time! So
-
The "Five-Character Formula" for Renovating Low-Yield Walnut Groves by Replacement, Thinning, Cultivation, Fertilization and Pruning
The "Five-Character Formula" for Renovating Low-Yield Walnut Groves by Replacement, Thinning, Cultivation, Fertilization and Pruning
-
Three-step improvement for mature walnut trees: trunk heading and renewal, grafting for variety replacement, and shape training
Trunk heading and renewal, grafting for variety replacement, shape training: the three-step improvement for mature walnut trees
条件筛选