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How to grow bitter grass

点击数:622 2019-01-21 Hits: 622
In the cultivation and management technology of bitter grass, the cultivation method of single bitter grass is a living technique, not only to master the cultivation conditions of bitter grass, but also to know the sowing time of bitter grass, the daily management of bitter grass and so on. In the following, the bitter grass network will introduce the methods of cultivating bitter grass in detail for you, as follows:
1. Cultivation conditions of bitter grass
The water surface used for artificial seed production of bitter grass should be above 1333 square meters, the water depth can be controlled within the range of 70-100cm, the silt is thick, the still water or water flow is slow, and the water transparency is high. The selected bitter grass seeds should be full in grain, good in gloss, black or dark brown, with a length of more than 2mm, and a small diameter of not less than 0.3mm. Natural wild bitter grass seeds are better, which can improve the tillering ability of the offspring.
2, sowing bitter grass
The planting period is from the end of April to the beginning of May, and the seed amount is 15-30g / mu. Before planting, soak the seeds for one day, soak them overnight, rub out the seeds in the fruit, rinse them, and sprinkle the seeds with semi-dry and semi-wet fine soil. When sowing, the water level should be maintained at about 10-30cm; if there are a large number of aquatic earthworms in the sowing area, the water level should be adjusted to 40-60cm.
3. Daily management of bitter grass
The bitter grass is relatively petite and grows slowly at the seedling stage. In order to promote tillering and control vegetative growth, the water level in the early stage is generally kept within 30cm. From late May to June, the rapid growth period has been entered, and 7 friends can reach more than 95% of the underwater coverage. At this time, the water level can be increased to about 70-100cm. In mid-July, top dress as appropriate according to the leanness of the waters. Generally, 10 kg of calcium phosphate or 2 kg of three-element compound fertilizer is applied every 667 square meters. If the silt is thick and the water quality is relatively high, you do not need to apply fertilizer to prevent excessive growth. Beginning in mid-August, bitter grass is blooming one after another, and a large amount of white pollen floats on the water surface. After fertilization is completed, the female flower's petiole curls into a spiral, and the fruit shrinks and sinks into the water.
4. Harvesting bitter grass seeds
In October, the fruit began to mature, and the flower stalk gradually became old and decayed, and the fruit gradually floated on the water. Usually the fruits floating on the water in the early stage contain a small number of seeds and the quality of the seeds is poor; therefore, the fruits floating on the water before November 5 should be removed and discarded; the fruits floating on the water after November 5 The quality is good, but some of the seeds in the fruit are not fully developed and physiologically mature. They need to float on the water surface for further development. They can be removed and dried in mid-to-late December. The harvest was completed at the end of December. The remaining fruit in the pond should not be reserved for planting. The yield of grass seeds is generally about 10kg / 667 square meters.
For more information on bitter grass, evergreen bitter grass, dwarf bitter grass, welcome to continue to pay attention to bitter grass net--Siyang Qingqing Aquatic Plant Planting Co., Ltd.

Copyright © 2018 Siyang Qingqing Aquatic Plant Planting Co., Ltd. 苏 ICP 备 15030465 号 Technical support: Dewei Technology


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