Over the years, farmers northern provinces selected multi-element fertilizer (DYT) NPK Van Dien specialized in fertilizing rice crops with outstanding efficiency, the product lines of DYT NPK Van Dien fertilizer have 13 nutritional components, the ratio of nutrients depends on Depending on the type of fertilizer used for priming or for top dressing. According to local custom and also due to market demand, rice variety structure In the northern mountainous provinces, it is quite abundant: in addition to cold rice varieties such as hybrid rice, short-term pure rice KD18. Vnr20… group of semi-photosensitive rice varieties such as U17, U19, or tall sticky rice varieties; In many places, special photosensitive rice varieties are planted such as Bao Thai, yellow flower sticky rice… (Dinh Hoa – Thai Nguyen area). These are high quality rice varieties, but the percentage of flat seeds is high and it is easy to fall if lack of phosphorus and other medium and micro nutrients. From the agronomic characteristics of rice transplanting, as well as nutritional requirements, specialized NPK fertilizer Van Dien provide nutrients for rice plants, from transplanting to the time of flower differentiation (Nutritional growth stage). The fertilizer product lines DYT NPK Van Dien have all 13 nutritional ingredients Research on physiology and nutrition of rice shows that: The life of rice plants can be divided into 2 growth stages: vegetative and vegetative. The vegetative growth stage was counted from the sowing rice to the female standing rice. Crop season, this period usually lasts about 30-35 days with short-term cold varieties; (In particular, the photosensitive rice varieties must wait for a “short day”, which is close to the Bach Lo period, before the rice changes to the vegetative stage). At this stage, the roots develop in the shallow soil layer (about 3-5cm) and in the direction of spreading according to the cover of the rice leaves, when the set of rice leaves covers the row, the rice roots are also woven into the field. this period rice focus on tillering, spreading leaves, spreading sheath to make false stems, so the most nutritional needs are protein, potassium and less phosphorus and other medium and micronutrients. DYT NPK fertilizer specializing in fertilizing rice has many different formulations such as: multi-factor fertilizer NPK ( 16 :5 :17) has a content of N 16%, P2O5 5%. K2O 17% Mg 5%, SiO2 7%, CaO 8%, S 2%, etc. Currently, many places people use NPK . formula 13:3:10 +TE. These are fertilizers with high nutritional content of nitrogen, helping rice plants to lay strong, grow leaves, and grow stems. The nutrient content of potassium is quite high in the fertilizer to promote moderate tillering. In addition to the balance of NPK substances according to the needs of rice plants at tillering stage, there are also enough medium and micronutrients to help rice plants grow healthy, hard rhizomes, good resistance to pests and unfavorable environment. The stage of vegetative growth was calculated from the time of differentiation of the stem to the maturity of the rice. The long-term rice varieties have the time to stand female, while the short-term rice varieties usually do not show the time when the rice is female, but the rice plants may still have tillering but have differentiated. The time of transition to the vegetative stage is counted from when the rice leaf set is more upright, the leaves are “equal to the head” or when the rice begins to harden and round the base. From here, a second layer of roots develops into the soil layers below; When the rice plant blooms, it is the time when the trunk reaches its greatest height, the roots also go down to the plow layer and reach the greatest “depth”. Providing enough nutrients at this stage helps the process of making poles, favorable flowering, good and durable leaves and large flowers, many seeds. In addition to the micronutrients, rice plants need a lot of phosphorus and NK balance to differentiate flower sprouts, especially high silicon content to help harden the root, stem, and stand the leaves to increase resistance to pests and sugar accumulation. flour. NPK fertilizer specialized in fertilizing rice has many different formulas such as: NPK NPK 6:12:3 or NPK 5:12:3 , 10:10:5, 10:7:3 or multi factor rice fertilizer 1 specializing in fertilizing rice with sufficient and balanced nutrients NPK and micronutrients necessary for rice plants in the growing and flowering stage. Multi-element fertilizer (DYT) NPK Van Dien specializes in fertilizing rice crops to help achieve outstanding efficiency Cultivating seasonal rice in the northern provinces with fertilizer DYT NPK Van Dien: Manuring : Depending on the foot of the field, rice variety and the amount of organic fertilizer, balance the amount of fertilizer in the crop; average about 15-20 kg / sao. High-legged fields, less rice transplanted, less fertilizer, low-lying fields, more acidic, more rice transplanted, more fertilized, especially Bao Thai rice fields, tall sticky rice trees.. need to give priority to lining fertilizer, can fertilize 20-25kg/pole. In order for the fertilizer to be mixed evenly and sent to the soil layers below, meeting the nutritional needs of the rice growing and flowering stage; manure should be spread evenly on the field before harrowing for transplanting or before the last harrowing turn; If you are worried about dehydration or loss of manure, you can spread manure right after the harrowing is completed, when the water is still cloudy and the mud is still loose. Do not apply fertilizer after the water is clear, the mud has settled. Because when the sludge is settled, the nutrients have been attached to the soil grain and sink, in the water at this time only the substances that cause acid and alum remain, which are toxic to the rice roots. Therefore, to settle the sludge, in the water for 1-2 days, remove the clear water and then sow. Dressing: .Based on the bottom of the field, the amount of NPK multi-factor fertilizer applied as a primer and the growth situation of each rice variety that fertilizes seasonal rice as follows: – Thickly transplanted rice fields, large transplanted fields, low-lying fields… Fertilize about 8-12 kg / pole. – The fields are fertile, high, or dehydrated. High yielding rice varieties need to be fertilized about 12-15kg/sao. -The swampy fields, Bao Thai rice fields, tall sticky rice, or other easy-to-fall rice varieties… reduce the amount of fertilizer, (you can even remove fertilizer) and should only fertilize when transplanting. 7-10 days. – Particularly, the foot of the field is high and rapid, the rice variety is hard-bodied, the fertilizer is applied twice: 60-70% of the fertilizer is applied when the rice is ready to burn, and the rest of the fertilizer is applied. To reduce fertilizer loss due to evaporation, leaching or leaching, etc., fertilizer should not be applied when it is hot and when the field is full of water. Fertilizer should be applied when it is cool and the field is dry.

In the winter-spring crop 2020-2021, Quang Tri Agricultural Extension Center has implemented an organic rice production model using Guilin organic fertilizer at An Long Cooperative, Trieu Hoa commune, Trieu Phong district to change awareness and transfer of technical processes and organic farming methods to people. From being dependent on chemical fertilizers, people have realized great benefits from applying organic fertilizers. Photo: PVT. The model is implemented on a scale of 10 hectares, 50 participating households. After selecting the demonstration site, the Quang Tri Agricultural Extension Center organized a training session to guide the process of organic rice intensification, especially organic composting. The implementation of organic composting was carried out early (since November 2020). At the same time, the technical staff has coordinated with the Commune People’s Committee and the Management Board of the cooperative to closely manage and supervise the implementation of the model as required by the program. Rice production process using sowing tools, HC95 rice variety has high quality, high yield and good quality. Master Tran Thi Thuy, the technical officer directing the model, said that in the process of planting, households have been instructed to carefully prepare the soil, create a flat surface, and drain water before sowing. Make sure to soak the seeds in the correct technique, regularly check the sprouts, when the sprout is 1/3 of a rice grain (cracked pineapple spikes), the roots are ½ of a rice grain, sow. Healthy, disease-free, productive, high-quality rice fields thanks to organic production. Photo: PVT. Rice is sown by row sowing tool, the amount of seed sown for 1 sao (500 m2) is 3.5 kg. Use composted organic fertilizer for lining and Guilin organic fertilizer during the growth and development of rice plants. Rice does not use chemical fertilizers, chemical pesticides, only biological pesticides are used when pests and diseases occur. Scientific irrigation water regime, suitable for the growing needs of rice plants. Fertilizers are applied in 4 main growth and development periods of rice… Calculating for 1 hectare, the amount of fertilizer for each application is as follows: Apply the last fertilizer before harrowing with 6-7 tons of broken organic fertilizer, 500 kg Guilin microbial organic fertilizer, 300 kg Guilin mineral fertilizer ; first application at rice 20 days after sowing with the amount of Guilin mineral fertilizer: 500 kg; second fertilizer at rice 32-35 days after sowing with 400 kg Guilin mineral fertilizer; 3rd application at rice 62 days after sowing, combined with spraying foliar fertilizer with 300 kg of Guilin mineral fertilizer, 40 packs of Guilin foliar fertilizer. Mr. Doan Tho Hoa, An Long village (Trieu Hoa commune, Trieu Phong commune) participates in the model of organic rice production with an area of ​​4 sao. Meeting with us, Mr. Hoa could not hide his joy and said: The difference of the organic rice production model is the use of Guilin organic fertilizer and the use of manure composted with Trichoderma products. The environment in the fields of Trieu Hoa commune (Trieu Phong, Quang Tri) is greener, cleaner and more beautiful thanks to organic rice farming. Photo: PVT. Compared to HC95 rice, which farmers cultivate in the usual way, the model rice plants are organically healthy, have durable green leaves, moderate green color from the beginning to the end of the crop, and the rice plants are free from pests and diseases from the root At the top, the color of the yellow rice grain is brighter. “During the last storm of the season with strong gusts of wind, conventional farming fields all fell, especially the model fields have strong roots, so they do not fall, which is very convenient for farming. harvest”, Mr. Hoa assessed. Mr. Doan Duc Tam, another household participating in the model, said that when cultivating rice in the organic direction, it will greatly limit the situation where pesticide bottles are thrown away in the field, but instead, the awareness The people’s compliance with the process of caring for rice with organic fertilizers has been increased. “During the implementation of the model, from planting, tending to harvesting, my relatives and I always feel secure, without fear of toxicity when taking care of rice,” said Mr. Tam. Multi-faceted benefits In the process of rice production, if using inorganic fertilizers for many years, without adding organic fertilizers as well as overusing inorganic fertilizers, it will cause harm such as increasing the susceptibility of plants to diseases. , kill beneficial microorganisms, make many arable land areas lose fertility, imbalance of nutrients in the soil, hard soil, decrease crop yield and increase production costs. impact on the environment and human health… Not using chemical pesticides, focusing on integrated pest management in the field has shown farmers countless benefits. Photo: PVT. The application of organic production processes increases the fertility of the soil, increases the minerals and effective microorganisms for the soil, has a very good effect on soil improvement, especially for the soils that have been and are being developed. degraded. In the long run, it will help the rice plant’s better resistance to pests and diseases. During the flowering period, the field will be less infected with planthoppers, dry, give long cotton, rice is free of pests, rice is clear, rice is soft and has a characteristic aroma. Economically, the yield is estimated at 57 quintals/ha for the HC95 variety, with the selling price of 9,000 VND/kg, giving a profit of 25 – 27 million VND/ha, 10-15% higher than the mass market. In addition, reducing the amount of sowing seeds by using a sowing tool, making rice plants grow healthy and balanced, this is an important factor contributing to improving productivity and economic efficiency. In terms of environment, ecology, using Guilin microbial and mineral organic fertilizers, combined with manure, stubble decomposition products, creating a favorable environment for beneficial microorganisms, improved soil. Better yet, the rice plants grow in balance, the environment is safe, the field ecosystem is secure, there are fish, snails, and crabs… living in the rice fields. Organically produced rice not only ensures quality and productivity, but also significantly reduces production costs. Photo: PVT. Developing agriculture according to organic farming methods not only contributes to the creation of organic products that are beneficial to human health, but also raises awareness and changes farming methods in rice production towards organic sustainable, ensuring safe products, the country’s environment is not polluted, contributing to the protection of the environment and field ecosystems. According to Mr. Phan Ba ​​Dinh, Chairman of the People’s Committee of Trieu Hoa Commune, Trieu Phong District: Local households have also felt the risk of abusing inorganic fertilizers, abusing chemical pesticides, affecting quality. agricultural products, environment and public health, so the model implementation is highly accepted by households. Mr. Dinh has learned from experience: If the technical process in the model is followed, such as using microbial organic fertilizers and Guilin mineral fertilizers, combined with manure, Trichoderma; If the amount of water is guaranteed, the weather is favorable, it is necessary to go through many production crops, the fields are improved, the fertility of the soil is improved… “From the initial support of the Provincial Agricultural Extension Center, it has helped households to firmly grasp and understand the technical stages of organic production that are different from mass production. In the next seasons, we will direct, and have supportive policies, and at the same time continue to propagate and replicate the model, encouraging farmers to implement this superior farming model,” Dinh said. know.