Fertilization of fruit trees in accordance with the time
The growth cycle of fruit trees undergoes metabolic processes such as growth, initial fruiting, fruiting, aging, and renewal. Physiological characteristics of different stages are different, and there is also a certain difference in the demand for nutrition. Therefore, the fertilization process should be adapted to the times. In young age, the fruit trees are mainly the development of tree crowns and the expansion of the root system, because the growth is not large, so the amount of fertilizer is not much, but sensitive to fertilizer. Once malnutrition is difficult to make up even if you double your fertilization later. Phosphorus application at this stage, appropriate application of nitrogen fertilizer and potash fertilizer is one of the key measures for early fruits and early high yield. If the fruit roots and crowns are continuously expanded, the fruit tree roots and crowns will continue to expand, and nitrogen fertilizers should occupy a larger proportion. At the same time, in order to promote flower bud differentiation, phosphorus and potassium fertilizers should be applied on the basis of nitrogen fertilizers. The results of the mature tree, due to multiple and successive flower bud differentiation, should increase the proportion of phosphorus, potassium, calcium fertilizer, fertilizer should pay attention to nitrogen, phosphorus, potassium and calcium fertilizer, especially to increase the proportion of potassium fertilizer. After the fruit stage, the trees are gradually aging, and more nitrogen fertilizer should be applied. The proportion of nitrogen fertilizer should be the same as that of saplings in order to promote rejuvenation and maintain fruitful growth. The most common waxy and sweet corn market, waxy corn has higher nutrient content than ordinary corn, containing 70-75% starch (and almost all amylose), more than 10% protein, 4-5% fat and 2 % Of multivitamins have more grains, VA, VB1, and VB2 than rice with the highest content of protein, fat and VB2. Yellow corn also contains carotenoids, such as rice and wheat. The molecular weight of waxy corn starch is more than 10 times smaller than that of ordinary corn. The starch makes glutinous rice sticky and softer than ordinary hard corn. Its digestibility is more than 20% higher than that of ordinary corn, and it is suitable for people with irregular teeth. At the same time, the content of amylose (a kind of polysaccharide) is very high, which is not suitable for diabetics.
Waxy corn is also called sticky corn. The grains have rough, waxy endosperm, similar to shiny, transparent grains, such as hard and dented corn. Its chemical and physical properties are controlled by a recessive gene located on chromosome 9. 100% of the starch in the endosperm is amylose.
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