论文部分内容阅读
板栗 Castanea mollissima是我国特产的一种优良干果树种 ,全国有 2 4个省 (区 )均有栽培 ,但产量很低 ,全国平均产量是 30 0 kg/ hm2 。据不完全统计 ,广东现有栽培面积约 3万 hm2 ,平均产量只有 1 50 kg/ hm2 ,尤其是许多实生的低产栗园 ,广东约有 1 .3万 hm2实生板栗 ,树体
Chestnut Castanea mollissima is a kind of excellent dried fruit species which is produced in our country. There are 24 provinces (districts) in the country which are cultivated, but the yield is very low. The national average output is 30 kg / hm2. According to incomplete statistics, the existing cultivated area in Guangdong is about 30,000 hm2 and the average yield is only 150 kg / hm2. In particular, many low-yield chestnuts with real yield are found. Guangdong has about 13,000 hm2 of pure chestnuts and trees