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1995年,我们在昌黎镇刘李庄村进行了京亚、康太、紫珍香、无核8611四个早熟葡萄品种的高密度日光温室栽培试验研究。总面积4.4亩,10月建造日光温室11座。1996年5月9日～17日果实开始成熟,6月20日采收结束。最高售价达每公斤32元,平均14.45元,平均每亩创产值3.1万元。其中京亚最高,亩产值3.7万元,无核8611最低,亩产值2.2万元。扣除建造温室材料成本及生产投资,平均亩纯收入1.94万元,比露地栽培高出3倍,而且除塑料薄膜
In 1995, we conducted a high-density greenhouse cultivation experiment in Beijing Liya Village, Changli Town. The total area of 4.4 acres, in October to build solar greenhouse 11. May 9, 1996 to 17, the fruit began to mature, June 20 harvest ended. The highest price of 32 yuan per kilogram, an average of 14.45 yuan, an average of 31,000 yuan per mu production value. One of the highest in Beijing, the mu output value of 37,000 yuan, the lowest nuclear-free 8611, 22,000 yuan per mu. Deducting the cost of greenhouse materials and production investment, the average income of 19,400 yuan per mu, higher than the open field cultivation three times, and in addition to plastic film