How to cultivate super sweet corn? In order to effectively promote the super sweet corn planting technology, first of all, it is necessary to increase publicity efforts to let people understand the super sweet corn planting technology and lay a certain foundation for the promotion of super sweet corn planting technology. Second, we must increase government support.
1 Super sweet corn planting technology
1.1 Preparation before planting
First, you need to choose the right planting area. Planting plots of super-sweet corn require flat terrain, soft soil, fertile soil, and convenient drainage and irrigation. It should be noted that when planting super sweet corn, it is necessary to maintain a certain distance from ordinary corn, and the distance other than 300 m is the best, in order to prevent corn stalk powder and affect the taste of super sweet corn.
Second, choose an excellent variety that suits the local environment. Super sweet corn can be divided into more types according to the level of sugar content, and there are many varieties, both domestic and foreign. However, since the germination rate of super-sweet corn is relatively low and the ability to top soil is relatively weak, it is necessary to select excellent seeds suitable for the local environment, such as Sweet Jade No. 2, Jinxian No. 1, Ketian 110, etc., and cannot be blindly selected.
Finally, we must properly grasp the planting time. Because of the high demand for super-sweet corn, in order to allow people to eat super-sweet corn as early as possible, many farmers often choose to grow super-sweet corn in advance without paying attention to the taste. This is absolutely impossible. In order to ensure the taste and yield of super sweet corn, the planting time should be determined according to climate, temperature and humidity. The general suitable planting time is from late February to early March.
1.2 Field management
First of all, when the number of leaves of super sweet corn is as long as two or three, it needs to be planted. The time of planting should be chosen as cloudy or afternoon. Because the seedlings are delicate and the sun is too strong, the seedlings will be killed. During the growth of seedlings, the growth of seedlings should be observed in the field. If the seedlings grow poorly, the seedlings can be replenished in time to ensure the yield of super-sweet corn. The method of replenishing seedlings is generally to take seedlings on the spot and select extra seedlings for transplanting in the field. When transplanting, you should choose cloudy or afternoon to avoid the seedlings being sunburned.
Second, the use of fertilizers when planting super sweet corn is also essential. Fertilization is mainly based on farmyard manure and is used in combination with NPK fertilizer. The combination of nitrogen and phosphorus fertilizers and organic fertilizers can reduce the fixation of phosphorus in the soil, so that the phosphate fertilizer can be easily absorbed and utilized by corn to improve fertilizer efficiency. The application of base fertilizer has three methods: application, application and acupoint application. Super sweet corn has the best effect by concentrated application and acupoint application. Whether it is a strip application or a hole application, it should be thoroughly mixed before and after application, and the fertilizer should be turned into the soil in combination with the cultivated land. The use of fertilizer should not be too much or too little, and fertilization should be carried out in strict accordance with the instructions for use of fertilizers. Also pay attention to reasonable irrigation. The growth process of sweet corn is mainly to keep the soil moist. The soil water holding capacity is controlled at 60%-70%, avoiding water accumulation. When the drought is dry, the horse water is poured in time, and the water is drained in time.
Finally, weeding is also a necessary process in the growth of super sweet corn. The growth of weeds absorbs nutrients in the soil and affects the nutrition of super sweet corn. Therefore, weeds should be cleared in time to improve the microclimate in the field. At the same time, pests and diseases will also affect the nutrition of super sweet corn. Therefore, in order to ensure the growth of super-sweet corn, pests and diseases can be prevented and controlled by breeding disease-resistant varieties, crop rotation, rational close planting, scientific fertilization and chemical control.
1.3 timely picking
Premature picking and late picking will directly affect the yield and quality of crops, especially for super sweet corn. Premature picking will reduce the mineral content of super sweet corn and reduce its nutrient content; too late picking will reduce its sugar content and taste. Therefore, when super sweet corn is about to mature, it should be patrolled frequently, and pick the right time to pick it in time. Generally, super sweet corn is harvested 20 to 25 days after pollination.
2 Promotion strategy of super sweet corn planting technology
Super sweet corn has high nutritional value and good taste, which is beneficial to people's absorption and digestion. In today's society, the demand for super sweet corn is increasing. If farmers can master super sweet corn planting technology, it will help farmers to obtain more economic benefits and promote sustainable agricultural development. Therefore, the promotion of super sweet corn planting technology is extremely important.
The government's support can not only effectively promote super sweet corn planting technology, but also give farmers a certain support, so government support is the top priority. Finally, we must provide certain subsidies for farmers. Because of the better performance of super-sweet corn, the cost of planting is also higher, and farmers will have some burdens and concerns when purchasing super-sweet corn seeds. In this regard, the government can introduce some subsidy policies to alleviate the burden on farmers and eliminate high price concerns. I believe that when people see the advantages of super sweet corn, they will actively grow super sweet corn.
In a hydroponic system, plants are placed in nutrient-enriched water. Mediums such as gravels, sand or vermiculite can also be used. Thus plants which are placed in the water absorb the nutrients very easly. When the nutrients from the water starts finishing , water is recycled or additional nutrients are added.
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