The use of greenhouses for eggplant production, high yield and high prices, growers can obtain better economic benefits. The price is controlled by the market, and it is not easy to master, but we can improve the yield of eggplant and increase the efficiency through reasonable and effective fertilization methods. The soil and environmental conditions in the greenhouse are different from those in the open field, so there are also great differences in fertilization methods. The fertilization method of the whole growth period of eggplant is described in detail below.
First, the seeds. In order to obtain higher yields, it is necessary to grab from the "small" and fertilize the seeds is also important. The fertilization of seeds mainly refers to seed dressing with bacterial fertilizer. The seed dressing can not only ensure the nutrients needed for seed germination, but also provide a good soil environment for seed germination, which is beneficial to increase the emergence rate and cultivate strong seedlings. Two kinds of problems should be paid attention to when seed dressing with bacterial fertilizer: 1. Use qualified fertilizer. Inferior bacterial fertilizer is harmful to the seed and is not beneficial. Do not apply it. It is necessary to select bacterial fertilizers with reliable technical background and technical sources, and stable quality and performance, such as Jinbao bacterial fertilizer. 2. Minimize the death of microorganisms. The bacteria fertilizer should be protected from direct sunlight. When seed dressing, it should be operated in a cool place. After seed dressing, it should be planted in time and immediately covered with soil. Bacterial fertilizer should not be mixed with harmful pesticides or chemical fertilizers.
Second, the seedling period. The growth of seedlings can affect the whole growth period of eggplant, especially for flower bud differentiation. Therefore, cultivating strong seedlings is the key to high yields and cannot be ignored. Applying more phosphorus fertilizer during the seedling stage can lead to early results. 9 square meters of seedbed can be applied to sieved decomposed organic fertilizer 200 kg, superphosphate and potassium sulfate each 0.5 kg; when eggplant seedlings grow to 4 to 5 true leaves, if the lower leaves are lighter, can be sprayed 0.1% to 0.2% potassium dihydrogen phosphate or urea, which can ensure the cultivation of strong seedlings.
Third, the base fertilizer. The eggplant grows for a long time, and the roots are deep and leafy. It is a vegetable crop that needs more fertilizer and is more resistant to fertilizer. Applying the base fertilizer is the basis for obtaining high yield. If the greenhouse is covered with plastic film, most of the fertilizer should be applied as a base fertilizer because of late inferior fertilizer application. The amount of fertilization in the old shed and the new shed is different. Because the old shed has more fat than the new shed soil, the new shed is more fertilized than the old shed. Most of the old shed soil has excess nitrogen, phosphate fertilizer is rich, and potassium fertilizer is insufficient. Apply 6,000 kilograms of organic fertilizer per 667 square meters. If the old shed can reduce the application rate, add 20-30 kg of potassium sulfate. Organic fertilizers and potash fertilizers should be fully applied and then turned into the soil. It is important to note that organic fertilizer must be fully decomposed, preferably with a professional starter (such as Golden Baby starter). Not only can it reduce the loss of nutrients, but also completely eliminate the harmful substances such as pathogens and eggs in organic fertilizer.
Fourth, topdressing. The topdressing of eggplant should be based on quick-acting nitrogen fertilizer, combined with phosphorus and potassium fertilizer, and appropriate amount of biological fertilizer. According to the growth period of eggplant, it can be divided into fruit fertilizer, fruit fertilizer and star.
1. Promoting fruit fertilizer: When the “door eggplant†reaches the “eye-opening periodâ€, the fruit begins to grow rapidly, and the whole plant enters the period of fruit growth. The stems and leaves also began to grow vigorously, requiring an increase in the amount of fertilizer. At this time, the first top dressing, called the fruit fertilizer, is the key fertilization period. The amount of fruit fertilizer is used, 30-40kg of ammonium sulfate per 667m2, or 15-20kg of urea, applied by acupoints or ditch, covered with soil after application, and watered.
2, Sheng fruit fertilizer: When the "on the eggplant" fruit is inflated, "four-door bucket" begins to develop, it is the peak period of eggplant fertilizer, then a second top dressing, that is, fruit fertilizer. Mainly available nitrogen fertilizer, combined with phosphorus and potassium fertilizer, but also pay attention to the leaf surface with calcium, boron, zinc and other medium and trace element fertilizers. Combined with watering, 1000 kg of decomposed dilute urine or 20-30 kg of diammonium phosphate per 667 m2.
3, Mantianxing: After the second top dressing, 10 days before the last harvest, when each layer of fruit begins to expand, it will be chased once every 10d or so, and 5-6 times of fat will be chased. Fertilizer and dilute urine are best used alternately.
4. Top dressing: From the beginning of the production period, 0.2%-0.3% urea, 0.2%-0.3% potassium dihydrogen phosphate, 0.1%-0.2% magnesium sulfate and other fertilizers can be sprayed according to the growth potential. Usually 7-10d once, even spray 2-3 times.
5, biological bacterial fertilizer: biological bacterial fertilizer not only contains a large number of nitrogen, phosphorus, potassium-dissolving bacteria, but also contains organic matter, humic acid and trace elements. Combined with other fertilizers, it can not only save fertilizer use, but also solve soil compaction and increase soil microbial content. By fertilizing the above methods, it is believed that the majority of growers can obtain better yields, thereby achieving the goal of increasing production and income.
First, the seeds. In order to obtain higher yields, it is necessary to grab from the "small" and fertilize the seeds is also important. The fertilization of seeds mainly refers to seed dressing with bacterial fertilizer. The seed dressing can not only ensure the nutrients needed for seed germination, but also provide a good soil environment for seed germination, which is beneficial to increase the emergence rate and cultivate strong seedlings. Two kinds of problems should be paid attention to when seed dressing with bacterial fertilizer: 1. Use qualified fertilizer. Inferior bacterial fertilizer is harmful to the seed and is not beneficial. Do not apply it. It is necessary to select bacterial fertilizers with reliable technical background and technical sources, and stable quality and performance, such as Jinbao bacterial fertilizer. 2. Minimize the death of microorganisms. The bacteria fertilizer should be protected from direct sunlight. When seed dressing, it should be operated in a cool place. After seed dressing, it should be planted in time and immediately covered with soil. Bacterial fertilizer should not be mixed with harmful pesticides or chemical fertilizers.
Second, the seedling period. The growth of seedlings can affect the whole growth period of eggplant, especially for flower bud differentiation. Therefore, cultivating strong seedlings is the key to high yields and cannot be ignored. Applying more phosphorus fertilizer during the seedling stage can lead to early results. 9 square meters of seedbed can be applied to sieved decomposed organic fertilizer 200 kg, superphosphate and potassium sulfate each 0.5 kg; when eggplant seedlings grow to 4 to 5 true leaves, if the lower leaves are lighter, can be sprayed 0.1% to 0.2% potassium dihydrogen phosphate or urea, which can ensure the cultivation of strong seedlings.
Third, the base fertilizer. The eggplant grows for a long time, and the roots are deep and leafy. It is a vegetable crop that needs more fertilizer and is more resistant to fertilizer. Applying the base fertilizer is the basis for obtaining high yield. If the greenhouse is covered with plastic film, most of the fertilizer should be applied as a base fertilizer because of late inferior fertilizer application. The amount of fertilization in the old shed and the new shed is different. Because the old shed has more fat than the new shed soil, the new shed is more fertilized than the old shed. Most of the old shed soil has excess nitrogen, phosphate fertilizer is rich, and potassium fertilizer is insufficient. Apply 6,000 kilograms of organic fertilizer per 667 square meters. If the old shed can reduce the application rate, add 20-30 kg of potassium sulfate. Organic fertilizers and potash fertilizers should be fully applied and then turned into the soil. It is important to note that organic fertilizer must be fully decomposed, preferably with a professional starter (such as Golden Baby starter). Not only can it reduce the loss of nutrients, but also completely eliminate the harmful substances such as pathogens and eggs in organic fertilizer.
Fourth, topdressing. The topdressing of eggplant should be based on quick-acting nitrogen fertilizer, combined with phosphorus and potassium fertilizer, and appropriate amount of biological fertilizer. According to the growth period of eggplant, it can be divided into fruit fertilizer, fruit fertilizer and star.
1. Promoting fruit fertilizer: When the “door eggplant†reaches the “eye-opening periodâ€, the fruit begins to grow rapidly, and the whole plant enters the period of fruit growth. The stems and leaves also began to grow vigorously, requiring an increase in the amount of fertilizer. At this time, the first top dressing, called the fruit fertilizer, is the key fertilization period. The amount of fruit fertilizer is used, 30-40kg of ammonium sulfate per 667m2, or 15-20kg of urea, applied by acupoints or ditch, covered with soil after application, and watered.
2, Sheng fruit fertilizer: When the "on the eggplant" fruit is inflated, "four-door bucket" begins to develop, it is the peak period of eggplant fertilizer, then a second top dressing, that is, fruit fertilizer. Mainly available nitrogen fertilizer, combined with phosphorus and potassium fertilizer, but also pay attention to the leaf surface with calcium, boron, zinc and other medium and trace element fertilizers. Combined with watering, 1000 kg of decomposed dilute urine or 20-30 kg of diammonium phosphate per 667 m2.
3, Mantianxing: After the second top dressing, 10 days before the last harvest, when each layer of fruit begins to expand, it will be chased once every 10d or so, and 5-6 times of fat will be chased. Fertilizer and dilute urine are best used alternately.
4. Top dressing: From the beginning of the production period, 0.2%-0.3% urea, 0.2%-0.3% potassium dihydrogen phosphate, 0.1%-0.2% magnesium sulfate and other fertilizers can be sprayed according to the growth potential. Usually 7-10d once, even spray 2-3 times.
5, biological bacterial fertilizer: biological bacterial fertilizer not only contains a large number of nitrogen, phosphorus, potassium-dissolving bacteria, but also contains organic matter, humic acid and trace elements. Combined with other fertilizers, it can not only save fertilizer use, but also solve soil compaction and increase soil microbial content. By fertilizing the above methods, it is believed that the majority of growers can obtain better yields, thereby achieving the goal of increasing production and income.
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