Non-woven rice covers the superiority of nursery, and the yield of rice is significantly increased. Non-woven covering technology is widely spread.
1, the characteristics of rice non-woven seedlings
Rice non-woven seedlings need not be ventilated as long as they do not experience high temperatures above 28°C. The width of the bed should be two pieces of agricultural film, to consider the wind direction factors to determine the film overlap, the film line to be tight, with a non-woven cover non-woven rice nursery effect is good, cover type is convenient and rapid, but also Artificial.
(1) High seedling emergence rate
Compared with plastic agricultural film, non-woven seedlings have a higher seedling rate. The non-woven fabric has good heat insulation performance and strong light transmission performance. It is able to meet the conditions for the growth of rice seedlings.
(2) Low cost
Save labor costs and save labor costs such as temperature, ventilating, hardening seedlings, filming, mixing ropes, inserting racks, not hitting Pesticides, not recovering seedlings, etc., non-woven fabrics 18,500 yuan per ton, agricultural film 08,000 yuan; The cost of a bed (15 square meters) of spinning cloth is 14.2 yuan, and that of the agricultural film is 16.4 yuan; the non-woven cover nursery significantly increases the utilization rate of water resources.
(3) Increase in output
The quality of rice seedlings is a very important role. The quality of seedlings produced by using non-woven seedlings is good. After transplanting, hair rooting and hair growth are very high and the tillering is early and many. According to the actual yield, the non-woven seedlings are proved. The yield per mu per mu is 18 kg higher than that of the plastic film seedlings, and the income per mu is increased by 28.8 yuan. The non-woven seedlings increase the yield and increase income significantly.
(4) Good environmental protection
The use time of rice non-woven fabrics is generally longer than 3 years, which is longer than that of other agricultural films. Non-woven fabrics are air-permeable and water permeable, and some of the pieces enter the soil, which will not cause the agricultural film to block the effects of soil moisture and nutrient conduction. Therefore, the pollution to the environment is much lower than that of plastic agricultural film. Non-woven seedlings do a good job of seed disinfection, and the use of high-quality strong broth agents in sufficient quantities, the incidence of cyanosis and blight is almost zero, thus completely avoiding the harm of pesticides to humans and animals caused by environmental pollution.
2, the requirements of non-woven rice seedlings
(1) Make bed
Rice non-woven seedlings should be selected high. Because of the good weather in the courtyard, high-altitude and small environment, the soil is fertile, the conditions of permeability are good, and the ground temperature is high.
(2) Nutrition Soil Preparation
In order to adapt to the characteristics of non-woven nursery seedlings that are not ventilated, a nutrient-rich soil must be provided. The first fertilization in Putian can meet the needs of the whole seedlings. Formulation method: Seedling seedling raising: 5.8 kg per square meter (568 holes, 5 pieces), 1.7 kg nutritive soil, 1.7 kg agricultural fertilizer, and the corresponding multi-functional rice seedlings and mix ratio (using the product manual) Become a nutrient soil.
(3) sowing
Sowing period: Non-woven cover nursery should be 3 to 5 days earlier than the agricultural film. Take Panjin as an example, the seedlings will be reared before April 15 and the isolation layer will be nursed before April 5.
Sowing volume: Seedlings are planted at 350 to 400 grams per square meter, which is 70 to 80 grams per plate. Dry seedlings in isolation layer 250 grams per square meter.
Method: Seedlings for seedlings: seedlings are firstly irrigated, discs are laid in order on the well-prepared seedbeds, and then the desired seeds are mixed well with the prepared nutrient soil and put on the plates. The flat board scrapes seeds and dirt into the holes.
Dry seedlings in the isolation layer: first, the seedbeds are irrigated with water, covered with a separating layer, and then the prepared nutritious soil is laid on the surface of the bed, and then water is poured again. The bed is flattened and sowed. After sowing, the seeds are pressed into the mud with shovels and sprinkled with cover soil.
(4) Putian closed. Use a good herbicide to close the seedbed. Dry season seedling weed characteristics selection mixed formulations and so on.
(5) Non-woven insulation. Non-woven fabric insulation effect is not good, cover the preparatory measures for insulation. In order to make up for this shortcoming, the bed must be covered with an ultra-thin film that is as wide as the surface of the bed after nursery to increase the pre-incubation and moisturizing effect, and to withdraw when the first leaf of the seedling is fully developed.
(6) Cover the non-woven fabric. Choose the best weight of about 36 grams per square meter, the best width of about 2 meters, non-woven fabrics have to undergo anti-aging treatment. According to the size of the seedbed, it is divided into appropriate blocks, and compacted with soil after four weeks.
(7) Mixing ropes. The surface of the non-woven fabric is not as smooth as the agricultural film, and the nylon rope or tear film is used for the string rope, and every 3 to 4 meters is mixed together. The rough surface of the straw rope should not be used to prevent the non-woven fabric from being worn.
4. Seedling management
Remove the film late. Non-woven seedlings from the sowing to the hardening period, generally less than the accumulated temperature of the plastic film 60 °C, the bed will not appear extreme high temperatures, it is not like the plastic film easy to roast seedlings, so to extend the film cover time to improve the early stage of nursery Required condition effect. In general, the agricultural film is removed from the soil under the condition of seedlings, and the non-woven cover nursery can be delayed until the first leaf is fully deployed.
Timely replenishment. When the top surface of the bed becomes white and dry, it should be replenished. One is to apply irrigation without exposing it. The second is watering, but the water can not be poured onto the seedbed before the film is removed. To solve this problem, we can water the non-woven fabric in advance, increase the temperature in the bed, and reduce the water shortage in the bed soil. After the local membrane is withdrawn, the watering can be directly drained to the seedbed to achieve replenishment.
Keep the temperature. Non-woven cover without ventilation and hardening of seedlings, early in the bed temperature should be kept as far as possible, when the agricultural film covered nursery into ventilation after hardening seedlings, does not appear high temperature above 28 °C, sometimes even if the time is very short, seedlings will not be hurt, Do not ventilate the seedlings. However, after entering the mid-to-late May, the outside air temperature keeps rising, the temperature in the non-woven cover nursery bed exceeds 28°C, and ventilation is also required to prevent the high temperature from causing the seedlings to grow.
5, matters needing attention
Strictly formulated nutrition soil. Non-woven covering new seedlings, unless the temperature is high, the entire seedling period is not exposed, no longer top-dressing, nutrition, acid, disinfection, control of rice seedlings strong agent, a reasonable ratio of nursery nutrition soil to ensure that The fertilization satisfies the nutrient requirements of the seedlings throughout the field.
Strict seed germination and pre-assisted warming. Insulation effect of special non-woven fabrics for rice seedlings is not as good as that of agricultural film. In order to ensure early, full, and uniform emergence, seed germination should be strictly followed according to the requirements of the operating regulations, and the second must be to cover the surface of the bed with a plastic film or cover cloth in the early stage of nursery. Cover old agricultural film to improve insulation effect.
Timely release of auxiliary warming measures. When the seedlings stand between the head and the first leaf, the large-scale production practice in recent years has proved that: the non-woven cover seedling has obviously overcome many problems in the agricultural film cover, and has obvious effect on increasing yield and income in rice production. At present, rice seedlings are an ideal cover material. In the future, we should continue to increase the promotion of rice non-woven cover nursery technology.
Dingmin Pharmaceutical supply Prucalopride API and Prucalopride Intermediates with high purity and best price. The main products CAS No are as follows: 748788-39-8, 232941-14-9, 179474-85-2. Sample can be sent if you request. Most of the products are stock available. Also can be custom.
Welcome to do business with us. Please email to us directly.
Cas 232941-14-9,Prucalopride Intermediates,2-Hydroxy-Benzoate
Shijiazhuang Dingmin pharmaceutical Sciences Co.,Ltd , https://www.dingminpharma.com