(1) Select high-quality early-maturing lotus root varieties.
My town uses the local "Donghe early è—•" as the main variety. "East River early in the morning" has an early knot and high yield. The tender color is white, the stem is thick, the taste is sweet, the taste is crisp, and the product is excellent. "Donghe early è—•" plant height is short, the average leaf is 83cm, the leaf diameter is 54.2cm long and 48.5cm wide. It has strong wind and wind resistance, easy to produce high yield, and is suitable for paddy field cultivation.
(2) Improve the cultivation density
Precocious shrubs have the growth habit of early sealing and early crusting. Therefore, it is appropriate to increase the seed amount and increase the cultivation density to have the effect of early maturity and high yield. In the case where the same variety has the same amount and different seedlings, the seed with the lightest weight of the single seed is the highest, and this experiment also shows that the cultivation density has the effect of early maturity and high yield.
(3) Planting in time, planting
After many years of records, statistics and analysis, the growth initiation temperature of "Donghe early 藕" is about 13 °C. Early planting and shallow planting are beneficial to the bud head protection of the seedlings and the early emergence of the seedlings.
(4) Scientific Fertilizer and Water Management
Due to long-term growth in the deep water environment, lotus roots have adapted to the characteristics of the thermostat. Rapid temperature changes are not good for lotus root growth. Therefore, mastering the water temperature regulation technology can play a role in precocity. If special low (high) temperature conditions are encountered in production, deep water protection must be applied.
The fertilization technique of Tianqi double-season cultivation is different from that of single-season alfalfa. The Donghe early-early cultivation is only 80 days from seeding to harvesting. Therefore, fertilization should be based on base fertilizer, accounting for about 75% of the total fertilization amount, and mainly based on organic fertilizer. The total amount of fertilization in spring is about 80 tons of standard fertilizer per mu.
The application of zinc fertilizer has a better yield increasing effect. Roots We tested in Shuangxi Village, 1.5 kg of zinc sulphate per mu, 146.1 kg more than the control mu, an increase of 9.27%.
First, the main cause of lack of lotus root
1 Putian lacks matured soil. When the pool is built, mechanical operations are often taken, and the topsoil of the field is pushed to the edge of the field or in the low depression. If the seed is inserted into the unriped soil, the plants tend to grow poorly. 2 insufficient application of organic fertilizer. Some farmers do not apply organic fertilizer at all in the new polders, but rely solely on chemical fertilizers. Some use organic fertilizers, but most of them are uncooked raw chicken manure, raw sheep manure, raw cow dung, etc. It takes several months to provide effective mineral nutrition for lotus root growth. 3 fertilizer is not fully nutritious. Many farmers apply only nitrogen and phosphorus fertilizers such as calcium phosphate, diammonium phosphate, ammonium bicarbonate, urea, etc. in newly built polders. Other fertilizers are basically not used, and it is easy to cause plant-derived physiological diseases.
Second, lotus root fertilization points
1 A large amount of decomposed organic fertilizer is applied. Generally, more than 3,000 kg of decomposed organic fertilizer should be applied per 667 square meters when the pond is built. In the absence of organic fertilizer, chemical fertilizers, mineral fertilizers and microbial fertilizers containing a large amount of elements such as nitrogen, phosphorus and potassium, and various medium and trace elements can be rationally combined and applied. 2 diligence, heavy application of topdressing. Newly built fields should be used early and the number of times should be high, and the amount of fertilizer should be large. Generally, 3-4 times of topdressing can be carried out during the vigorous growth period of the plant, and each time 667 square meters is used to apply 1000-1500 kg of decomposed human excrement. In addition to diligence and heavy application of topdressing, it should also pay attention to spraying anti-disease agents to control the spread of infectious diseases
Lotus root fertilization technology:
We developed a corresponding nutritional formula by testing the soil nutrient content and combining the fertilizer demand and performance symptoms in the lotus root production process. The first is to increase the application of decomposed organic fertilizer and promote the use of bio-organic compound fertilizer 1000 kg / mu. The second is to increase the calcium fertilizer. When the whole field is completed, 50-100 kg of lime is applied per mu to adjust the pH. The third is the combined application of phosphorus and potassium fertilizers to control the application of nitrogen fertilizer. 150 kg of superphosphate per acre and 40 kg of potassium chloride. The fourth is to increase the application of micro-fertilizer, applying 3 kg of potassium dihydrogen phosphate, 2 kg of borax and 2 kg of zinc sulfate per acre. This year, the technology area was 2,100 mu, and the average output reached 3,570 kg. No disease, the quality of lotus root increased significantly, the average output value of mu reached 3280 yuan.
Total 1 | <First <Prev 1 Next> Last> |
share to:
Steel Measuring Tape,metal measuring stick,non metal tape measure,tape measure
Shangqiu Haoyu measuring tools Co., Ltd , https://www.sqhaoyutools.com