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Cotton Harvesting Techniques: Careful Picking Brings Higher Returns
I. Cotton should be harvested at the right time. Cotton harvesting is the last step in cotton production and the key to ensuring a high-yield, high-efficiency harvest. Because cotton is an indeterminate inflorescence crop, it successively forms buds, flowers, bolls and maturity, and requires multiple harvests. Therefore, after the cotton boll matures, the third stage of fiber development still has to be completed during the cracking process, namely the fiber dehydration and convolution period, about 7 days or so. The moisture content of the cotton boll shell drops from 80% to 30%, and the moisture content of the cotton pulp drops from 57% to 18%. The fiber further dehydrates and matures, forming convolutions, and at the same time, due to cellulose deposition, fiber strength continues to increase.
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Detailed Explanation of Key Technical Points for Picking and Processing Famous Autumn Tea
(1) Tea leaf picking. Pick lightly and handle lightly. For tea bushes with good growth and a thick layer of green leaves, you may leave fish leaves or pick without leaving leaves. For those with poor growth and a thin layer of green leaves, especially tea bushes that suffered severe early drought, with many fallen leaves and exposed bare branches, the main approach should be to retain and nurture them, and in the later stage adopt the method of tipping and picking while leaving leaves. This allows the tree vigor to recover quickly and benefits a bumper spring tea harvest the following year. (2) Fresh leaf storage. In early autumn, temperatures are high and the climate is dry; fresh leaves have lower moisture content than spring tea. During transport and storage, it is necessary to prevent too-rapid moisture loss and excessive dehydration of fresh leaves. The containers holding fresh leaves must be well
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A Detailed Explanation of the Picking and Processing Techniques of Keemun Black Tea
The picking and processing craft of Keemun black tea is fine and meticulous. The buds and leaves of one bud with two or three leaves are picked as raw material. After withering, rolling and fermentation, the buds and leaves change from green to purplish copper red, and the aroma is released, after which they are baked over a gentle fire until dry. After the rough black tea is made, it must still undergo refining. The refining process is complex and labor-intensive, and the finished tea is made through rough sifting, shaking sifting, grading sifting, tight-gate sifting, brushing sifting, cutting, air selection, picking and sorting, supplementary firing, clean wind selection, blending and packing. The high-grade Keemun black tea has a tight, fine and slender appearance, a dark glossy color, and after brewing the tea liquor is red and thick, with a fresh, fragrant and richly aromatic scent.
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A Detailed Explanation of the Picking and Processing Technique of Haoming Tea
Haoming Tea was developed jointly by the Haoming Tea Company of Yizheng City, Jiangsu Province, and Nanjing University, and is produced in the western part of the ancient city of Yangzhou in the Jiangbei tea region. Influenced by the unique regional environment, its quality is deeply favored by consumers for its emerald green color, flat and straight shape, high and lasting aroma, clear and bright liquor, fresh, mellow and refreshing taste, tender and even brewed leaves, and its resistance to many infusions. In 1990, this tea was designated as the special tea for the rostrum of the main venue of the 11th Asian Games, and in 2000 it won China
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Detailed Explanation of Key Techniques for Spring Tea Picking and Management
Before the spring tea picking begins, carry out one shallow plowing and weed cutting to remove overwintering weeds. When picking fresh leaves, strictly follow the picking standards for the quality of famous and superior tea, and pick in batches and in a timely manner. Generally, pick the bud tips or one bud with one leaf (because famous and superior tea is in short supply on the market and has high economic returns, while bulk tea is in oversupply on the market and has low economic returns). When picking tea leaves, keep the fresh leaf buds and leaves intact, uniform in length, fresh, clean and hygienic, free of foreign matter. For loading and transport, use clean bamboo baskets with good ventilation; do not use soft packaging materials such as cloth bags or plastic.
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