Silver strips (stachys floridana schuttl et benth.), also known as silver strips, silver strips, territories, a string of purple, etc., edible underground rhizomes. Its rhizomes are crisp, juicy and fiber-free. They can be fried, cooked or made into candied fruit, and can be stained with sauce. They have unique flavor and rich nutrition. Contains a variety of minerals, vitamins, etc., with lungs, blood, kidney benefits. 1. Botany features The roots are shallow, and the roots grow horizontally. The stem above the ground is standing and the plant height is 50--80cm. Square stems are square on the ground, and there are inverted bristles on the corners, which are easy to fall off. The upper part of the stem is reddish-brown, the lower part is green, and the branches are more, and the flower buds are capped. There are stolons on the ground, and the top of the stolons develops into an enlarged organ rhizome. Rhizomes with nodes, each section has two buds; the top section shortens, dense eyes, have apical dominance. Leaves simple, dark green, opposite, oblong, lanceolate, veins reticulate, abaxially bristly, margin jagged. Umbrella inflorescences axillary, multiple flowers densely composed spikes in the top of the main stem and the top of the upper branch. Flowers sessile, corolla white or lavender, lip-shaped, tetradynamous, ovary superior. Flowering from July to September. The fruit is a small nut, the seed is oblong in a shape of a triangular prism, and the weight of a thousand seeds is 1.0--2.0 g. 2. Requirements for environmental conditions 2.1 Light. Silver strips are short day crops. Light does not require germination, long-day light is beneficial to the growth of stems and leaves, short-day light can promote the formation and expansion of rhizomes. 2.2 Temperature. The growth period of silver strips is about 210 days (days). It is not tolerant to frost, and it is dead on the ground in frost and wintering on underground rhizomes. Ground temperature begins to germinate at 8°C, and 16--21°C is the most suitable. The optimum temperature for plant growth is 24-28°C, and the suitable soil temperature for rhizome expansion is 20--25°C. 2.3 Water and fertilizer. The silver strips are hi moist and moist, and should be planted in loose fertile, deep soil, and well-drained light loam, and poor growth in clay dry land. 3, cultivation techniques Silver dishes can be single and can also be corn, eggplant and other nesting. Three rows of silver strips are interplanted with one row of corn. The summer corn can also be shaded by silver strips. The harvested seedlings can also be planted in Datian after the early crops such as rape are harvested. Silver sticks should be replaced after 2--3 years (years) to prevent the spread of pests and diseases. Former crops include carrots, cabbage, spinach, onions and garlic. 3.1 cultivars. 1 fine silver bar, plant height, 50--80cm, darker leaves, rough surface, more bristles. Rhizomes are slender, succulent, white and transparent, with good processing quality. 2 Rough silver bars, plant height 80--120cm, lush stems and leaves, lighter leaves, leaf surface smoother. The underground rhizomes are thick and brown, with rough skin and poor processing quality. 3.2 Soil fertigation. The silver genus is a shallow root crop that is resistant to pods. The land is required to be flat and the cultivation layer is deep and loose. The land should be turned upside down and at the same time, 1500-2000kg of decomposed organic fertilizer, 40-50kg of nitrogen fertilizer, 50kg of superphosphate, and 30kg of potassium sulfate per 667m2 of basal application. Before sowing, 18 kg ammonium dihydrogen phosphate was applied every 667 square meters to make a seed fertilizer. In the middle and late March, the site preparation was made into a 120cm wide flat or high flat file. 3.3 Strip treatment. Choose rough, well-distributed rhizomes that are disease-free and non-residual. First, fold the strips into several sections, leaving two to four buds in each section, and then dip for 15 minutes (minutes) with gibberellin at a concentration of 10 mgl (upper right-1). 3.4 Cutting seedlings. The silver strips are generally cut directly, and they are irrigated early in the spring to make water, then flattened. The shallow ditch with a depth of 7--10 cm is formed at a row spacing of 35--40 cm, and the cuttings are inserted end to end in the ditch. You can also dig a 7--10cm hole with a line spacing of 35--40cm and a hole depth of 10--15cm. Insert 2-3 cuttings per hole and cover the soil immediately after cutting. In general, 8000 seedlings will be guaranteed for every 667 square meters, with cuttings of 40--50kg. Transplanting seedlings should be 20--30d (days) ahead of direct cuttings. The strips were treated with gibberellic acid and inserted into a 10-m wide and 1.3-m wide Yangshuo plot. The Yangshuo Plowing depth was 10- to 15-cm. Before the cutting, 130kg of high-quality soil manure and 0.4kg of tri-component fertilizer were used as the base fertilizer. Simmer noodles and fill the bottom water. Cutting line spacing 4--5cm, covered with 3cm thick nutrient soil (soil: decomposed organic fertilizer = 6:4), keeping the bed temperature 16--20 °C, after about 15d (days) can be emergence, before planting 3--5d (day) strengthen the ventilation and hardening seedlings. Planted in mid-April, planted a deep 4--6 cm furrow on the alfalfa and planted after planting fertilizer. Plant spacing 20--25cm, spacing 30--40cm, 6000--8000 plants per 667 square meters. 3.5 Field Management. During the whole growing season, we should pay attention to keep the soil moist and loose and breathable. When the seedling height is about 10cm, we should top up the urea 5--8kg (667m2) (upper right-1). If the foliage grows too strong, it can be sprayed with chlormequat to inhibit the growth of the shoot. After flowering, flowers are removed during the bud period to reduce nutrient consumption and promote underground rhizome enlargement. In the middle and late August, the rhizomes were formed, and 10 kg (667 m2) of ammonium phosphate was topdressed in time (upper right-1). Soil aridity will inhibit rhizome enlargement. 3.6 Harvesting. After the frost fell in late October, the upper part of the ground was dead, and it could be harvested and marketed successively. It could be kept in the ground for the winter, until the spring of the following year. Try not to break the bars during harvest to improve product quality. It can produce 700--1000kg per 667 square meters. Since the silver strips are not resistant to storage, they should be sold, processed, or dried in time to prevent accumulation of mildew.
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