What are the varieties of kenaf seeds? What are the methods of raising seedlings?
Kenaf, also known as kenaf, is an annual herbaceous crop native to Africa. Kenaf is a kind of fast-growing renewable resource with short growth period, simple management and broad economic value. it is mainly welcomed by the market for the production of technological fiber. at present, kenaf is planted and distributed in the Yangtze River and Huaihe River basins to the northeast and even the northwest. So what are the varieties of kenaf seeds? What are the methods of raising seedlings? Let's get to know it.
What are the varieties of kenaf seeds?
According to the leaf type, it can be divided into two types: split leaf type and whole leaf type. In the leaf type, according to the highest number of lobes, there are three-lobed leaves, five-lobed leaves, seven-lobed leaves and so on; according to the leaf shape, the whole leaf type has long egg type, oval type, nearly round type and so on. According to the stem color can be divided into green, ulcerated red, red, fuchsia and so on.
In addition, according to the origin of kenaf varieties, kenaf was classified according to the whole growth period of kenaf. Generally, it can be divided into extra-early type (the whole growth period is less than 120 days), nail-mature type (121-150 days), medium-mature type (151-180 days), late-maturing stage (181-210 days) and very late-maturing type (more than 211 days). This classification method can reflect the growth characteristics of varieties and determine the appropriate planting range. At present, the kenaf varieties planted in large areas in China are mainly Hunan kenaf series, medium kenaf series, Fukenaf series and so on.
What are the methods of raising seedlings?
1. Land preparation
It is better to prepare the ground about 20 days before sowing, which is more conducive to the rooting of seedlings. When preparing the ground, the ground should be flat, empty and solid, and there should be no bumps.
2. Sowing seeds
The sowing time should be determined according to the actual planting conditions. Generally, it is better to sow when the surface 5cm soil temperature is more than 15 ℃. The sowing method should be changed from sowing to strip sowing. Strip sowing can use equidistant strip sowing (row spacing 26-33cm) or wide and narrow row strip sowing (wide row 40cm, narrow row 20cm). Sowing should strictly grasp the principle of shallow sowing and shallow cover, and the sowing depth should not exceed 3cm.
3. Seedling stage management
Setting seedlings between ①: early seedlings, uniform seedlings and timely seedlings are important links in the cultivation of strong seedlings. The seedlings are usually carried out twice, and the seedlings grow too dense before the true leaves. There are 2-3 true leaves, and the second interseedling occurs when the seedling height is 4-5cm. When the seedling height is about 10cm, the seedlings will be fixed when 5-6 true leaves appear.
② mid-tillage weeding: mid-tillage weeding at seedling stage plays an important role in improving soil aeration, promoting root development and early seedling development. Kenaf in southern China is generally ploughed 3-4 times in the seedling stage, combined with inter-seedling and fixed seedling.
③ water and fertilizer management: seedling fertilizer should be applied lightly and frequently, usually twice. It is low temperature and rainy in spring in southern China, so special attention should be paid to Mayang drainage and waterlogging prevention at seedling stage.
Generally speaking, the traditional use of kenaf is mainly to use its bast fiber for packaging textiles such as hemp thread, hemp rope, hemp bag, hemp cloth, etc., and its variety is very extensive. The selection of varieties suitable for local cultivation is helpful to promote the development of kenaf industry. In addition, mastering the key seedling management technology is the secret of increasing production and income.
For wonderful pictures and articles and popular comments on kenaf seed varieties and seedlings, you may be interested in the following recommended contents of Nongxun. Welcome to read.
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