First, water management:
1. Irrigation: Ginger is moist and does not tolerate drought, but its root system is shallow and its ability to absorb water is weak. It is difficult to use the deep water in the soil. Therefore, shallow water must be used to meet the needs of ginger growth. Irrigation should be done in the morning or in the evening.
2. Moisture management: In order to ensure the smooth emergence of ginger, the bottom water must be irrigated during sowing, and usually the first water is not poured until about 70% emergence. In the case of sandy soil, the water retention is poor, and in dry weather, the soil is very dry although it does not emerge. In this case, it should be irrigated as appropriate. After the emergence of the first irrigation water to be poured in a timely manner, such as the soil poured too early will be hardened, the emergence of young shoots difficult, easy to cause uneven seedlings. If it is poured too late, the ginger buds are affected by drought, and the bud tip is easy to dry.
3. Seedling water management: seedling plants are small, slow growth, water is not much, but the seedling period of the water requirements are very strict, not water. In the early stage of seedlings, it is appropriate to use small water for irrigation. After the water is poured, the soil will be shallow and the soil will be preserved when the soil is dry. This will help increase the ground temperature and promote the development of the root system. In the late seedling period, during the summer season, the weather is dry and hot, and the soil evaporation is large. The number of waterings should be increased, and the relative humidity of the soil is often kept between 65% and 70%.
4. Management of water in vigorous growing season: After the beginning of autumn, a large number of branches and new leaves occur in the upper part, and the rhizomes in the underground part rapidly expand. Here, the plants grow fast, have a large amount of growth, and require more water to satisfy the vigorous growth period of water. Need, generally every 4 to 6 days drenched once, often keep the relative humidity of soil 75% to 85% is conducive to the rapid formation of plant organs, 5 to 6 days before harvest, and then poured water, so that when harvested Ginger can be taken Moist mud, conducive to storage in the pit.
5. Drainage: In order to prevent ginger fields from collecting water and ginger seedlings and causing ginger rot, we should do a good job of cleaning the trenches in the fields so that the ditch can communicate with each other and the rain can stop drying.
Second, fertilizer management:
1. Basal fertilizer: One application of base fertilizer is one of the important measures to seize high yields. Fertilization should be dominated by organic fertilizers. Potassium fertilizers should be reused. Phosphorus fertilizer must be applied in combination with nitrogenous fertilizers. The ratio of nitrogen, phosphorus and potassium is generally 2:1. 3, base fertilizer to high-quality farmyard fertilizer and phosphorus, potash fertilizer, generally per acre Shi maturity farmyard fertilizer 1500 ~ 2000 kg, compound fertilizer 40 kg, 100 kg of phosphate fertilizer, urea 10 kg, 30 kg of ammonium bicarbonate. The base fertilizer can be turned into the soil during site preparation, and centralized fertilization method can also be adopted, that is, to open a trench or dig a pond to apply it at the time of sowing.
2. Top dressing: top dressing should generally be light and heavy. The first time the seedlings are flush, seedling height is about 30 cm, Shi Zhuang Miao Fei is used, 500 kg of decomposed manure is used per mu, water is added 5 to 6 times, or urea is used. 10 kg dubbed 0.5% to 1% thin fertilizer solution pouring. The second time after starting from the mother Niang Jiang, known as the jeopardized manure, per acre applied cooked 1000 kg of manure or compound 30 kilograms, such as base fat enough plant growth, this fertilizer can not be applied or less applied. The third fertilization is carried out when the cold turns in the early fall, which promotes branching and enlargement of ginger. Generally, 10 to 15 kg of calcium phosphate per mu or 20 kg of compound fertilizer is applied, and weeding is performed in combination with earth.
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