Info

39,392.0

Source: Xianchang et al. (1996).

Source: Xianchang et al. (1996).

According to the results of our study, it is better to plant 82,500 to 90,000 plants/ha in a middle fertile level field for cultivars such as the Lai Wu big ginger at a row space of 60 to 65 cm and an individual plant space of 19 to 20 cm. For Lai Wu slice ginger, it is better to plant 105,000 to 112,500 plants/ha at a row spacing of 50 to 55 cm and an individual plant spacing of 18 to 20 cm.

Shading

Ginger belongs to the medium-light plants and cannot endure high temperatures. But its seedling stage occurs in the hot summer, when sunlight is strong and air and soil temperatures are high. If shading or other measures to lower temperature and hold humidity are not implemented, ginger seedlings will be weak and short, resulting in yield decline. So in the seedling stage, ginger should be shaded or other measures adopted to lower the temperature and to keep humidity high (Table 6.12)

Studies have shown that there is obvious photoinhibition under high light stress at midday under field conditions. The extent of photoinhibition is serious during the seedling stage because of higher light intensity and temperature. After shading, the degree of photoinhibition declines markedly. So shading can make ginger leaves sustain a higher photosynthetic efficiency, and increase the dry matter accumulation, thereby increasing the unit area yield (Zhenxian et al., 1999, 2000).

Shading decreases not only light intensity, but also lowers the temperature and enhances the air relative humidity and soil water content. Shading increases more regular rhizome sprouting and uniform population size. Shade is beneficial in enlarging the root system

Table 6.12 Effect of shading on microclimate of ginger fields

Shading

Was this article helpful?

0 0
Essential Aromatherapy

Essential Aromatherapy

Have you always wanted to know what is aromatherapy? Here are some invaluable information on aromatherapy. I leave absolutely nothing out! Everything that I learned in order to improve my life with aromatherapy I share with you.

Get My Free Ebook


Post a comment