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1982年,金县四十里公社东三十里大队第三生产队地覆膜盖土豆0.83亩,亩产5951.8斤,比相同条件下0.17亩不覆膜土豆亩产3817.6斤增产55.6%。覆膜栽培主要好处是:1.地温高、出苗早。从3月20日播种到4月13日的25天调查,覆膜的10厘米累计地温是347.9℃,日平均地温13.9℃,比不覆膜增加79.9℃,日平均地温提高3.2℃。由于覆膜地温高,土豆生根发芽快,出苗、现蕾、开花和结薯也早,覆膜土豆4月11日出苗,比不覆膜提早16天;5月7日现蕾,比不覆膜提早13天;5月15日开花,比不覆膜提早13天。2.上市早、收入多。覆膜土豆6月20、25、30日分三次收获(比普通栽培提早一个月左右),平均单价0.13元,覆膜亩产值777.65元,扣除地膜、除草剂费用为737.65元,比不
In 1982, the third production team of Dongsishitili Brigade, Shilili Commune, Jinxian County, covered 0.83 mu potatoes with 5951.8 kg mu per mu, which was an increase of 55.6% compared with 0.17 mu mu of non-coated potatoes under the same conditions. The main benefits of film cultivation are: 1. High ground temperature, early emergence. From the sowing on March 20 to the 25th on April 13, the cumulative 10 cm accumulated ground temperature was 347.9 ° C, the average daily temperature was 13.9 ° C, 79.9 ° C higher than the uncoated, and the average daily ground temperature increased by 3.2 ° C. Due to the high temperature of plastic filming, potato germinate fast, emergence, budding, flowering and tuberization are also early, the filming potato sprouted on April 11, 16 days earlier than the non-laminating; budding on May 7, The membrane is 13 days earlier; flowering on May 15, 13 days earlier than the non-membrane. Listing early, more income. Film-coated potatoes were harvested three times on June 20, 25 and 30 (about one month earlier than ordinary cultivation), with an average unit price of 0.13 yuan and a mu yield of 777.65 yuan per mu of plastic film. After deducting the plastic film, the cost of herbicide was 737.65 yuan,