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淮山药为高产高效经济作物 ,常年每 667ｍ2 产2 50 0ｋｇ以上 ,产值逾 50 0 0元 ;,耐贮易运 ,市场走俏(销售周期长达半年之久 )。因而 ,其开发前景极为广阔。但生产上常因重茬连作 ,而遭致短体线虫病 (Ｐｒａ ｌｙｌｅｎｃｈｕｓｓｐ .)又称黑斑病的毁灭性为害。过去因栽培面积
Yam yam is a high-yield and high-efficiency cash crop. It produces more than 2 500 kg per 667m2 perennial output and over 500,000 yuan output value. It is resistant to storage and easy to transport, and the market is very popular (the sales cycle is up to six months long). Therefore, its development prospect is extremely broad. However, the production often due to continuous cropping, and was caused by short-body nematode disease (Pra lylenchussp.), Also known as black spot disease devastating damage. Past due to cultivation area