The Study On Cultivation Techniques Of Fruit Sweetpotato New Vairety Ganshu2in Hilly Red Soil Upland

Ganshu2was one kind of fruit sweet potato which was high quality edible, better foodprocessing and good food taste, it was breeded by Jiangxi Red Soil Reaserch Institution in2010, and it could be planted in most areas of Jiangxi province. However, the extensionarea of Ganshu2was lower than other varities of sweetpotato due to lacking of plantingtechnique for high yield and good quality. In order to find better planting technology forGanshu2, the field experiments of different planting patterns were conducted in2010-2012,the main results showed as fellow.1. The reasonable density of Ganshu2was60000-75000plants/hm~2in red soilupland in jiangxi province, especially, the yield of Ganshu2was highest when it wasplanted by67500plants/hm~2in summer.2. The harvesting time of Ganshu2was reasonable when reached to more than130days, and the highest benefit for Ganshu2could be get while its growth period was about150days.3. It could be planted from middle April to middle August in red soil of jiangxiprovince. The yield was higher when it was planted before early July, the quality wasbetter when it was planted from late April to middle July, therefore, the planting stage wasfrom late April to early July, the yield and quality of Ganshu2would be better.4. The yield of Ganshu2was highest when90kg/hm~2nitogen ferlizer and45kg/hm~2P2O5and135kg/hm~2K2O were applied with6000kg/hm~2organic fertilizer in red soil ofJiangxi province.5. Plastic mulching could increase obviously the yield of Ganshu2. The yield of whiteplastic mulching was51475.7kg/hm~2, it was more than CK by7753.8kg/hm~2, theincreasing rate was17.7%. The yield of black plastic mulching was51976.0kg/hm~2, it wasmore than CK by8254.1kg/hm~2, the adding rate was18.9%. Plastic mulching couldimprove the appearance quality and filling rate of Ganshu2. it suggested that Ganshu2was planted by using plastic mulching.