As the saying goes, “a crop of flowers depends entirely on fatâ€. Grape fertilization is the same as other fruit trees, that is, it needs N, P, K, Ca and other elements, and also needs trace elements such as Zn, B, and Mn. To use good fertilizer, we must know the role of various fertilizers. First, the role of major mineral elements 1. Nitrogen (N) Insufficient supply of nitrogen, grape plants can not grow normally. Under proper nitrogen conditions, the grapes sprout neatly, pollinated, fertilized, and fruit set well. This not only guarantees high yields in the current year, but also the quality of the fruit is good, and it also affects the following year's yield. If there are too many nitrogen fertilizers, the leaves will be thin, the new shoots will be long, the falling fruit will be heavy, the fruit setting rate will be decreased, the branches will be unfilled, the fruit color will be poor, the ripening will be delayed, the quality will be declining, and the wine will be of poor quality. In the fertilization of grapes: First, to avoid the application of large amounts of organic fertilizer and fertilizer mainly nitrogen fertilizer, resulting in imbalance in fertilizer ratio, there are excessive nitrogen fertilizer symptoms; on the other hand to avoid relative shortage of nitrogen fertilizer, sometimes because the fruit load is too high, Poorly soiled or improperly pruned soil causes poor coloration of fruit and the shoots stop growing prematurely. Therefore, how much nitrogen fertilizer is used and when nitrogen fertilizer is applied must be based on the fertility of the soil and the vigour of the grapes. 2. Phosphorus (P) P is the main component of nuclear proteins, phospholipids, and nucleic acids. It is mainly found in parts of fast growth, such as flowers and seeds. All organs of the grape plant contain phosphorus. The supply of sufficient phosphorus is conducive to grape blossoms and fruit set. Some people applied phosphate fertilizer tests and thought that as the concentration of soil phosphoric acid increased, the fruit setting rate increased and the ear weight increased. The effect of phosphorus on the differentiation of grape flower buds was more obvious than other elements. Phosphate fertilizer can also promote the growth of roots, increase the number of roots, promote the maturity of dendrons, and increase the resistance to drought, cold resistance and so on. 3. Potassium (K) Grapes are potassium-loving plants. Potassium plays a major role in the photosynthetic function and sugar transport. Potassium in the ripening phase of berries promotes large amounts of sugar into the fruit. The important effect of potassium on grapes is to promote berry maturation, improve berry quality, increase the sugar content of berries, promote berry coloration and the formation of aromatic substances, and increase the rate of alcohol production. Potassium application is beneficial to the development of the root system, and potassium deficiency causes physiological deficiencies such as yellowing of the leaf margin, dry coking, cob cobs, and dry fruit. 4. Zinc (Zn) Zn is involved in the synthesis of chlorophyll and auxin. In the absence of zinc, shoots are short in internodes, the leaves are small and green, and a large number of small and small fruits are formed on the ear, often green and hard. Small leaflets are the main features of zinc deficiency. 5. Boron (B) B is a trace element, and boron affects the action of enzymes, can promote flower fertilization, fruit set, can promote sugar transport, reduce malformation. Boron deficiency, inhibition of pollen tube development, buds can not be normally open, resulting in a large number of falling flowers, fruit drop. The lack of boron in the internodes becomes short, brittle, and the foliage is uneven, producing brown spots in the flesh under the skin. 6. Calcium (Ca) Ca is a component of the cell wall and intercellular layer and is also abundant in vacuoles. In the absence of calcium, the normal function of the cells is affected. In grape plants, calcium accumulates mainly in old organs, but the amount of calcium required for growth and development is also large. It is beneficial to the development and absorption of roots, and there are nitrogen deficiency symptoms in the absence of calcium. Bordeaux fluids are used in the northern regions and generally do not contain calcium. In acidic or acidic soils in southern China, application of lime can improve the quality of grapes and increase yield. 7. Iron (Fe) Fe is involved in a variety of oxidoreductase components and participates in intracellular redox reactions. Iron deficiency causes yellowing of the grape plants and chlorosis of the leaves. However, unlike the lack of magnesium chlorosis, the first appearance of the top yellow leaves is full yellowing, and only the veins remain green. Iron can no longer be reused in grape plants. Therefore, yellowing disease manifests itself first in young leaves, while the old leaves are still green. When the iron deficiency is severe, the shoots turn yellow-green or yellow. Iron deficiency in plants is often associated with partial alkali in the soil. 8. Magnesium (Mg) Mg is an important component of chlorophyll and closely related to photosynthesis. Magnesium is mainly present in active young tissues and organs in grape plants. Phosphorus was poorly metabolized in the absence of magnesium, and the tip of the shoot was immersed in water. The leaves lost chlorosis and yellowing. Only the veins were green, and the fruit setting rate and fruit weight decreased. Second, N, P, K three elements of the use of proportion and amount of fertilizer "It has been reported that N: 5 ~ 10kg, P2O5: 2 ~ 4kg, and K2O: 5 ~ 10kg are required for the production of 1000kg of grapes. For reference only, it depends on the fertility of the soil itself." In 2000, the State Administration of Light Industry issued the regulations for wine production management: the amount of elements needed to produce a ton of wine grapes: nitrogen 8.5kg, phosphorus 3.0kg, potassium 11.0kg, calcium 8.4kg, magnesium 3.0kg, sulfur 1.5kg and Other trace elements. The period of fertilization should be closely combined with the growth and development stages of the grapes. After sprouting, with the growth of new shoots, the leaf area gradually increases, and the demand for nitrogen fertilizer increases rapidly; subsequently, the demand for nitrogen fertilizers for berry growth and development increases, and the absorption of nitrogen fertilizers by plants significantly increases; in flowering, fruit set After that, the demand for phosphorus increased steadily; during the growth of berries, the amount of potassium absorbed gradually increased to meet the growth and development needs of the berries. Third, fertilization period 1. Base fertilizer It is indispensable to use basal fertilizer at the end of autumn, mainly using organic fertilizers and some chemical fertilizers (N, P, K fertilizers, etc.). The depth of the base fertilizer should reach the main distribution layer of the root system. The organic fertilizer gradually decomposes in the soil and can be used for the growth and development of the next year. In the autumn, the grape root system enters the second growth peak. At this time, fertilization and cutting roots have strong regenerative and absorption effects. If the applied organic fertilizer contains straw compost, human excrement containing more nitrogen can be properly blended to adjust the ratio of carbon and nitrogen, which is conducive to compost maturity. Autumn basal fertilization and soil deep turning combine to serve two purposes. 2. Before germination This period is dominated by fast-acting nitrogen fertilizers such as urea and ammonium bicarbonate. In the period of injurious flow, the absorption of grape roots is enhanced, and the effect of top dressing before germination is obvious, which can increase the germination rate, increase the inflorescence, and make the new shoots grow robustly, thereby increasing the yield. If the amount of autumn fertilizer is sufficient, you can not top-dress this period. 3. Dressing before flowering With quick-acting nitrogen and phosphate fertilizers, potassium fertilizer can be added in an appropriate amount. This topdressing has a good effect on flowering, pollination, fertilization, and fruit set and flower bud differentiation in the year. Because of falling flowers and falling fruit, it is generally not suitable to topdress N fertilizers before Kyoho grapes, and it should be applied after flowering. 4. Young fruit fertilizer With N, P, K compound fertilizer. Its main role is to promote the rapid increase of berries, reduce the rate of small fruit, and promote flower bud differentiation. At the same time, the roots began to thrive and the shoots grew faster, and the grape plants required a large supply of nutrients. If the amount of plant load is insufficient and the shoot length is long, the application of fast-acting nitrogen fertilizers should be controlled. 5. Berry ripening fertilizer Potassium and phosphate fertilizers (in addition to quick-acting phosphorus and potassium fertilizers can also be used for farmhouse manure such as grass and wood ash), and when the berries begin to be colored, a large amount of grass-tree ash or decomposed chicken manure mainly containing potassium and phosphorus is applied. Nitrogen fertilizers are generally not to be used during this period. However, in vineyards with too many ears or on poor sand and gravel, the nitrogen fertilizer should be applied properly during the ripening period of berries after the rainy season. Otherwise, nitrogen fertilizer is insufficient. 6. Post-harvest fertilizer Phosphorus and potash fertilizers, with suitable amount of nitrogen fertilizer, were used to promote flower bud development. The post-harvest fertilizer can be applied in combination with the autumn base fertilizer. Fourth, foliar fertilizer First of all, it is clear that foliar fertilization is only a supplement to soil fertilization. It is an emergency measure when the grape is in lack of fertilizer, especially it is supplemented with iron, zinc, boron and other trace element fertilizers. Foliar fertilization cannot be used instead of soil fertilization. Ready-to-eat Single Packed Sweet Corn
The factory is located in Gongzhuling City which known as "Hometown of Corns in China", it is one of the top three golden corn belts in the world far away from pollution.
If you have any questions, please contact us directly. Welcome to visit our factory, if you have any questions, please email us directly.
Sweet Corn Cob Varieties,Sweetest Sweet Corn,Sweet Corn Maize,Sweetened Corn Cob Jilin Province Argricultural Sister-in-law Food Co., Ltd. , https://www.nongsaocorn.com
Jilin Province, as the main corn producing region in China, is also in the main grain exporting province of the country. It has been the first in China in terms of total corn production and commercial grain rate. There has the mosst excellent soil and climate which are suitaable for corn growth. The corns there have high yield and excellent quality, are ideal raw materials for processing fresh sweet and waxy corn.Corn planting in the Northeast region is mostly one crop a year, and spring sowing is mainly based on clearing, which accounts for more than 50% of the corn planting area in the Northeast.
In addition to clearing, the importance of corn in crop rotation cannot be ignored. Rotate crops with sorghum, millet, soybeans and other crops to improve crop yields.
Affected by climatic characteristics, the choice of corn varieties in Northeast China is to choose varieties with moderate maturity or early maturity, and at the same time have the characteristics of low temperature tolerance and high yield.
