The vigorous growth period of ginger refers to the period from the three-story period to the harvest period. After the autumn, when the weather turns cold, it begins to enter a prosperous growth period. The long-term growth period can be divided into the pro-long period and the prolonged period. In the early stage of prolonged period, it usually takes about one month to grow on the stems and roots of the ground. It is characterized by a large number of shoots on the ground, the number of leaves increases rapidly, the leaf area expands sharply, and the roots occur in large quantities, which can form larger within one month. Assimilation system, while the number of ginger balls increases with the increase of branches, but the expansion is small. The suitable temperature required for the prolonged period is 25 °C during the day and 17-18 °C during the night. It requires a certain temperature difference between day and night, which is conducive to the manufacture and accumulation of nutrients and reduces the nighttime respiratory consumption. The long-term water demand is large, and the soil is always kept moist. The relative humidity of the soil is 70-85%; the ginger is light and shade-tolerant, the long-term population is large, the plants are shielded from each other, and strong illumination is required to meet the requirements of photosynthesis of stems and leaves. Excessive wetness or waterlogging in the field is not conducive to the vigorous growth of plants, easy to rotten roots, and disease. High temperature and drought are not conducive to the vigorous growth of plants, and the yield is reduced, which makes the fiber of ginger ball increase and the quality declines.
Analysis of agro-meteorological conditions in the early stage: Since July 31, the rainy weather in our province has been nearer than normal or low, with less light and uneven rainfall distribution. The precipitation in all areas of southwestern Shandong, Luzhong, and northwestern Shandong is between 50 and 183.6 mm, which is more than normal. Among them, Jinxiang is the largest; most other areas are below 50 mm, including the southeastern part of Shandong and the southern part of the peninsula. Less than 20 mm, close to normal or less. The meteorological conditions and public opinion status of the previous ginger producing areas are basically conducive to the growth of the stems and leaves of the ginger. The temperature is suitable for the rapid increase of the number of leaves, the increase of leaf area and the increase of the number of ginger balls.
Recent field management measures recommendations:
1. The root system of ginger is shallow, that is, it is not drought-tolerant and not resistant to cockroaches, so it is necessary to keep the field water supply even. Long-term growth is large, the amount of water required is large, and the soil must be kept moist. However, after the rain, the soil should be drained in time to avoid the accumulation of water and the roots of ginger and ginger.
2. Strengthen field management. After the autumn, the sun's light will gradually weaken, and the ginger grass can be removed, which will increase the light intensity in the field, improve the microclimate in the field, and promote photosynthesis.
3. After removing the ginger grass, timely topdressing, the amount of topdressing should be large, the nutrient should be comprehensive, the fertilizer should be applied to the ginger ditch, cover the soil and seal the soil, and finally pour the water, so that the ditch of the plant grows into a ridge, which is beneficial to the later stage. The rhizome is enlarged.