Shortening of harvest period of ginseng by the covering with new materials and the application of paste fertilizer

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The cultivation methods of ginseng were proposed to shorten a period of harvest in this study. The yield of ginseng covered with a white sun-shading net was increased with increasing of solar transmittance, compared to that covered with traditional materials composed with wheat straws and chestnuts trees. Further, sunscald of leaves was alleviated by duplex covering with the white sun-shading net. The concentration of chlorophyll of ginseng injected by a paste fertilizer was maintained higher level during growth period. Then, injection of paste fertilizer was effective for increasing of the yield of ginseng.