德国西部地区的一些农场里,黑夜耕地十分时兴——农夫们往往选择“伸手不见五指”的黑夜进行耕作,拖拉机一律关上所有照明灯而代以军用红外线夜视仪辨别方向……原来,虽说黑夜耕地可能会增添不少麻烦,但德国农学家苏里贝克发现;凡在黑夜翻耕的土壤中,仅2％的野草种子日后会发芽,但如白天翻耕,野草种于发芽率竟达80％,约为前者的40倍之 In some areas of western Germany, the nighttime arable land is very fashionable. Farmers often choose to cultivate the “no-one” dark night. The tractor turns off all the lights and replaces the military night-vision night vision device to identify the direction. Cultivated land may add a lot of trouble, but the German agronomist Sullbeck found that only 2% of the weed seeds will germinate in the soil plowed in the dark at night, but if the grass is plowed during the day, the germination rate of the weed seeds reaches 80 %, About 40 times the former