Year1
- 型号：
- 0.1mm-2.5mm
- 规格：
- 6*100m
- 包装：
- 捆裝
3 Anti-seepage membrane for seed lotus root and lotus root pool that has emerged in recent years
(Geomembrane) 333. Its main component is high-density polyethylene, about. Carbon black, anti-aging agents, antioxidants, UV absorbers, stabilizers and other auxiliary materials are specially formulated and made through three-layer co-extrusion technology. They have excellent chemical resistance, UV resistance, high strength and durability. and resistance to stress cracking. These properties are crucial for anti-seepage and waterproofing applications in artificial lake landscape pools. The anti-seepage membrane
has greater flexibility to withstand larger uneven settlements, and is most suitable for applications with high wear, exposure to harsh liquids, and unshielded applications. 33 Li film is a new type of non-toxic and environmentally friendly material. The raw materials and polymer additives used are non-toxic materials and have no volatile odor. It has been widely used in breeding, chemical industry, landscape, Mining, construction and food liquid storage pools and other fields
Lotus root planting field management 3 Manager Li
Scientific control of water level
The general principle of shallow water lotus root water layer management is: shallow in the front, deep in the middle, shallow in the back . During the budding growth period from planting lotus roots to the appearance of standing leaves, shallow water should be maintained to increase soil temperature, promote germination, and accelerate survival rate. Generally, it is better to maintain a deep water layer. With the emergence of vertical leaves and the growth of lotus root stems and leaves, the water layer should gradually rise to ~. When the terminal leaves appear, it indicates the beginning of lotus root formation, and the water layer should gradually decrease to ~ to promote lotus root formation. The water level of deep-water lotus roots is not easy to adjust. The main purpose is to prevent waterlogging during the flood season. Especially after the standing leaves are submerged, emergency drainage should be done inside so that the lotus leaves are exposed to the water to prevent drowning
Weeding, leaf picking, and flower picking 3 Manager Li
Before the lotus leaves are sealed, combine weeding with fertilization. Pull out the weeds and stuff them into the mud under the lotus roots as fertilizer. About a month after planting, the floating leaves will gradually wither and should be removed in time. When there are ~1 standing leaves, seal them and the lotus roots will start to sit early. It is not advisable to go to the field to weed to avoid bruising the lotus root body. At this time, weeding should be done on both sides of the rolled leaves. conduct. The purpose of lotus root harvesting is to bloom and produce seeds, which consume nutrients. If there are flower buds, the pedicels should be bent and not broken to avoid rainwater intrusion and cause rot. During the growth of lotus roots, especially in the early stages of shallow-water lotus root growth, there are many weeds such as eyegrass, oxenia, dwarf arrowheads, trigonellae, four-leaf duckweed, and black algae in the paddy field, which grow quickly and affect the growth of lotus roots. Weeding should be done promptly. In the past, artificial cultivating and weeding was often used, which required a large workload and was easy to trample the underground stems and buds of lotus roots. If chemical weeding is used, it will save labor and effort, and will not harm lotus roots. Specific method: Choose . Cover grass energy, or 3. Stable kill / water ~ / After fully mixing, when the dew dries, spray the weed leaves. After this, the control effect on three- to four-leaf stage grass weeds more significant.
Top dressing 3 Manager Li
Lotus root likes fertilizer. The fertilizer is generally based on base fertilizer. Top dressing only accounts for 3% of the whole growth period. If you sow closely and harvest early, you need to apply more fertilizer []. The nutrients needed by lotus roots during the growth and development process come from the photosynthesis of lotus leaves on the one hand, and from the soil on the other. The original fertilizers in the soil are limited (including basal fertilizers), and they become less and less as the plants grow and develop. , cannot meet the growth needs of lotus roots, so top dressing must be done in time. Lotus roots have a long growth period. Topdressing is done in stages after the lotus roots are shed. The first time is when a lotus leaf appears. The first time is when the terminal leaves appear. At this time, lotus root formation begins, so it is called lotus root chasing. Fertilizer, applied human excrement. /. Fertilization should be carried out on a sunny and windless day and should not be carried out under the scorching sun. Each fertilization should be applied in shallow water, wait until the fertilizer is absorbed into the soil, and then pour to the original depth. After top dressing, the lotus leaves should be rinsed clean. You can also topdress chemical fertilizers, the first application of ammonium bicarbonate/, urea/, lotus root field special compound fertilizer or compound fertilizer/the second application of urea/, lotus root field special compound fertilizer/.
Turn the lotus root head 3 Manager Li
There is no need to turn the lotus root head for continuous planting fields. When planting lotus roots in a single field, the lotus root head should be turned. Turn the lotus root head facing outside the field to the inside of the field, and turn the lotus root head in the middle of the field. Turn to the empty space. During the vigorous growth period of the lotus root, the lotus whip grows rapidly. When the leaves roll away from the field edge, in order to prevent the lotus root heads from crossing the field edge, every time we weed, the lotus root heads close to the field edge are turned toward the field at any time. Every ~3 turns during the peak growth period. times, if the weather is bad and growth is slow, then ~ times, total ~ times. Turning should be done at noon when the stems and leaves are soft. The lotus root heads are very tender. When turning, the nodes should be held up together. After turning, they should be pressed with soil.
Prevention and Control of Pests and Diseases 3 Manager Li
Pests and diseases of lotus root are generally not serious. The main diseases include rotting diseases. In mild cases, the leaves turn yellow, and in severe cases, the diseased plants wither and die. Insect pests include aphids and Spodoptera litura, which can be controlled with wettable aphidicide powder and refined trichlorfon liquid respectively.
Harvesting
When the back of the terminal leaves of the lotus root turns reddish and the edges of the base vertical leaves begin to wither and turn yellow, the lotus roots are mature. For example, when most of the leaves are green, you can dig out the young lotus roots and then when all the leaves turn yellow after the frost, you can dig out the old lotus roots. The old lotus roots can be dug one after another until the next spring. When digging lotus roots, target the rear leaves and terminal leaves, determine the growth position of the lotus roots, and cut off the lotus root whips at the rear nodes to prevent muddy water from invading the pores of the lotus roots. Then dig out the upper layer of soil with your hands or a shovel, and then carefully dig out the lotus roots.
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