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Fresh sweet waxy corn has high nutritional quality and economic value. Its use and edible methods are similar to those of vegetables, and are often called vegetable corn. In production, reasonable fertilizer management is to promote the early development of sweet glutinous corn, to regulate the growth of the population, to prevent premature aging, to establish a high-efficiency and high-yield group, to adjust the nutritional status, and to improve the quality and flavor of fresh sweet glutinous corn. An important way to produce high efficiency.
According to the characteristics of short growth period and processing characteristics of fresh sweet corn, the general principle of fertilizer operation is: adhere to the application of organic fertilizer and inorganic fertilizer, increase the application of organic fertilizer, apply proper amount of chemical fertilizer, and apply heavy fertilizer when applying fertilizer. Topdressing, and increasing the application of phosphorus and potassium fertilizer, the use of long-acting nitrogen fertilizer and phosphorus and potassium fertilizer combined application effect is better.
1. Adding organic fertilizers Organic fertilizers can enhance soil fertility, improve soil fertility, increase organic fertilizers, maintain stable plants, and improve nutrient quality.
2. Rational operation of chemical fertilizers Nitrogen fertilizer can significantly increase the yield of sweet corn, but excessive nitrogen fertilizer will reduce the content of lysine and sugar in the grain, while phosphorus and potassium fertilizer is beneficial to the increase of lysine and sugar. The increase of phosphorus and potassium fertilizer reduces the starch content, improves the nutritional value of the ear, improves the processing quality and palatability of the grain, and improves the commodity value. Especially in the general soil fertility range, the application of potassium fertilizer can improve the nutritional quality of sweet corn and the sugar content of the stem, and significantly increase the protein, lysine, fat and total sugar of the grain. However, excessive potassium application has an inhibitory effect on the formation of lysine in corn kernels. Fertilization strategy should be based on different soil fertility levels and different types of fertilizer characteristics. Under the conditions of high nitrogen fertilizer, combined with P and K fertilizers, high yields can be obtained while obtaining good economic benefits. The total nitrogen (N), phosphorus (P2O5) and potassium (K2O) are about 16~20, 10~15 and 15~20 kg. The dosage and application period are also determined according to the level of soil and plant growth. It is better to grow vigorously, and the leaf color is normal or deep. Nitrogen fertilizers are concentrated in the seedlings, which generally account for 30% of the total application rate. The seedlings are applied in the 3~4 leaf age of the seedlings, pay attention to the large seedlings or the less application, the seedlings are applied more, and the seedlings are promoted. Balance, the general dosage accounts for 10~20%; the panicle fertilizer should be re-applied when the 7~8 leaves are unfolded. At this time, the sweet corn begins to be jointed, and the application rate accounts for 40-50% to promote the growth of high-efficiency leaf area near the ear and the ear. The main target is the large spike; the sweet corn is harvested in the milky stage, so the grain fertilizer generally does not need to be applied again. However, in the early stage of grain filling, depending on the amount of fertilizer in the early stage and the characteristics of the seedling, the grain fertilizer should be applied as appropriate, and the biochemical preparation can be sprayed on the leaf surface. Promote the fullness of the seeds of the ear, promote the filling, and promote the appearance of the morning market and the goods. The top dressing should be within 10~15 cm beside the plant, combined with the cultivating and weeding to open the hole. Phosphorus and potassium fertilizer should be applied as a base fertilizer once. Because phosphorus and potassium fertilizers have little mobility in the soil, they are not easy to be lost. Concentrated application in the sowing line is beneficial to root absorption. Phosphorus and potassium fertilizer is beneficial to promote the early growth of strong seedlings.
3. Replenishing the growth and development of corn micro-fat sweet corn requires a certain amount of trace elements such as zinc, iron, manganese, boron, copper, molybdenum and ultra-microelements. These elements are often part of enzymes, coenzymes or some vitamins. Small, but essential, once lacking, the symptoms of deficiency are obvious, affecting the yield and quality. Therefore, in the production of sweet corn, it should be based on the soil abundance, pay attention to the application of base fertilizer or spray micro-fertilizer on the leaves to ensure sweetness. Corn grows normally to improve the quality and yield of sweet corn.
According to the characteristics of short growth period and processing characteristics of fresh sweet corn, the general principle of fertilizer operation is: adhere to the application of organic fertilizer and inorganic fertilizer, increase the application of organic fertilizer, apply proper amount of chemical fertilizer, and apply heavy fertilizer when applying fertilizer. Topdressing, and increasing the application of phosphorus and potassium fertilizer, the use of long-acting nitrogen fertilizer and phosphorus and potassium fertilizer combined application effect is better.
1. Adding organic fertilizers Organic fertilizers can enhance soil fertility, improve soil fertility, increase organic fertilizers, maintain stable plants, and improve nutrient quality.
2. Rational operation of chemical fertilizers Nitrogen fertilizer can significantly increase the yield of sweet corn, but excessive nitrogen fertilizer will reduce the content of lysine and sugar in the grain, while phosphorus and potassium fertilizer is beneficial to the increase of lysine and sugar. The increase of phosphorus and potassium fertilizer reduces the starch content, improves the nutritional value of the ear, improves the processing quality and palatability of the grain, and improves the commodity value. Especially in the general soil fertility range, the application of potassium fertilizer can improve the nutritional quality of sweet corn and the sugar content of the stem, and significantly increase the protein, lysine, fat and total sugar of the grain. However, excessive potassium application has an inhibitory effect on the formation of lysine in corn kernels. Fertilization strategy should be based on different soil fertility levels and different types of fertilizer characteristics. Under the conditions of high nitrogen fertilizer, combined with P and K fertilizers, high yields can be obtained while obtaining good economic benefits. The total nitrogen (N), phosphorus (P2O5) and potassium (K2O) are about 16~20, 10~15 and 15~20 kg. The dosage and application period are also determined according to the level of soil and plant growth. It is better to grow vigorously, and the leaf color is normal or deep. Nitrogen fertilizers are concentrated in the seedlings, which generally account for 30% of the total application rate. The seedlings are applied in the 3~4 leaf age of the seedlings, pay attention to the large seedlings or the less application, the seedlings are applied more, and the seedlings are promoted. Balance, the general dosage accounts for 10~20%; the panicle fertilizer should be re-applied when the 7~8 leaves are unfolded. At this time, the sweet corn begins to be jointed, and the application rate accounts for 40-50% to promote the growth of high-efficiency leaf area near the ear and the ear. The main target is the large spike; the sweet corn is harvested in the milky stage, so the grain fertilizer generally does not need to be applied again. However, in the early stage of grain filling, depending on the amount of fertilizer in the early stage and the characteristics of the seedling, the grain fertilizer should be applied as appropriate, and the biochemical preparation can be sprayed on the leaf surface. Promote the fullness of the seeds of the ear, promote the filling, and promote the appearance of the morning market and the goods. The top dressing should be within 10~15 cm beside the plant, combined with the cultivating and weeding to open the hole. Phosphorus and potassium fertilizer should be applied as a base fertilizer once. Because phosphorus and potassium fertilizers have little mobility in the soil, they are not easy to be lost. Concentrated application in the sowing line is beneficial to root absorption. Phosphorus and potassium fertilizer is beneficial to promote the early growth of strong seedlings.
3. Replenishing the growth and development of corn micro-fat sweet corn requires a certain amount of trace elements such as zinc, iron, manganese, boron, copper, molybdenum and ultra-microelements. These elements are often part of enzymes, coenzymes or some vitamins. Small, but essential, once lacking, the symptoms of deficiency are obvious, affecting the yield and quality. Therefore, in the production of sweet corn, it should be based on the soil abundance, pay attention to the application of base fertilizer or spray micro-fertilizer on the leaves to ensure sweetness. Corn grows normally to improve the quality and yield of sweet corn.
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