Secret of high yield of ginger

The high yield of ginger should be paid attention to from many aspects, such as selecting loam or sandy loam with deep and fertile soil, convenient drainage and irrigation and high organic matter, and can not be continuous cropping, during which it can be rotated with rice and legume crops for 3-4 years. The seeds are usually sowed from February to March, and the seeds can be soaked and disinfected with Bordeaux solution before sowing, and the density can be controlled reasonably. Potash fertilizer and pig and cow manure can be used as base fertilizer, nitrogen and potash fertilizer can be recovered after sowing, sun shading and drought and waterlogging prevention should be done well in summer, and soil should be cultivated in time in the later stage.

I. strict selection of places

Ginger is suitable to be planted in loam or sandy loam with deep soil layer, fertile soil and more organic matter, which requires relatively high topography, not easy to accumulate water, convenient drainage and irrigation, and good conditions are conducive to prevent the occurrence of ginger plague.

Second, it is not suitable for continuous cropping

When ginger is planted in the environment of high temperature and humidity, it is more prone to rot, commonly known as ginger plague, which is a bacterial soil-borne disease. In general, the disease is more serious in continuous cropping, which will lead to a decrease in ginger yield, so ginger is not suitable for continuous cropping. However, it can be rotated for 3-4 years with rice, legume crops and cruciferous crops.

Third, disinfection and budding

The main results are as follows: (1) the fully mature, hypertrophic, disease-free ginger with 1-2 strong buds is selected as ginger seed. There are many methods of disinfection before sowing. The seeds can be soaked in Bordeaux solution of 1-1. 5-200 Bordeaux for 20 minutes to kill the germs on the surface of the ginger.

(2) after disinfecting the ginger, take out the ginger and dry for 2-3 days, then pile it up when the ginger is dry, then cover it with straw or hemp bag for heat preservation and accelerate germination, keep the temperature between 20 ℃-25 ℃ during this period, and sow when the ginger bud grows to 1cm.

Fourth, sow seeds at the right time

The sowing time of ginger in South China is 2-3 months, and the suitable size of sowing ginger is 70-100 grams.

5. Reasonable close planting

The density of growing ginger is about 40cm, and the plant spacing is about 20-25cm.

VI. Apply sufficient base fertilizer

Ginger is more fertilizer-tolerant, and the growth period is very long, when planting, it is necessary to apply sufficient base fertilizer, 3000-5000 jin of pig and cow manure per mu, and 20-30 jin of potash fertilizer as base fertilizer.

7. Scientific topdressing

Topdressing should be applied from light to thick for a few times, once when the seedlings grow to 15cm, once again when the seedlings grow to 30cm, and once every 20 days in the later stage. Nitrogen fertilizer should be applied mainly in the seedling stage, and more potassium fertilizer should be applied in the rhizome expansion stage.

8. Shading and cooling

Ginger is a shade-tolerant plant, but it is not resistant to strong light and high temperature, and scattered light is conducive to growth, so it is necessary to shade the sun in the summer growth stage, and there are many methods of shading, during which it can be intercropped with crops such as Pueraria lobata, taro, wax gourd and so on. and use these crops for sunshade, can also build a flat shed for sunshade.

IX. Prevention of drought and waterlogging

Ginger is not resistant to drought and flood, so it is necessary to keep the soil moist during the growth period. when the temperature is high in summer, ginger should be watered in time, water can be watered once in the morning and evening, and stagnant water in the field should be discharged in time in the rainy season. so as to reduce the occurrence of ginger plague.

10. Cultivate soil at the right time

The main results are as follows: (1) the rhizome of ginger is suitable to grow in a dark and humid environment. In the later stage, with the upward growth of the rhizome, the rhizome will slowly expose to the ground, resulting in thicker ginger epidermis and worse quality, so it is necessary to cultivate the soil for about 3 times. the depth of soil cultivation can be determined by the purpose of planting.

(2) to cultivate the soil with tender ginger is deeper, which can increase the length of ginger and make the meat crisp and tender, while the soil with ginger is shallower, thus making the rhizome strong and healthy.