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文化大革命以来,我县广大群众,在“农业学大寨”运动中,大胆创新,提高了土豆栽培技术,涌现出许多高产典型。现就两个公社农技站、三个大队科研站的试验结果,总结土豆高产技术如下: (一)晚播。我县7月份气温最高,月平均温度22.2℃,最高35.1℃。8月份气温19.5℃,9月份14.2℃。最适合土豆生长的季节是8月～9月上中旬的50多天。晚播,可以把结薯期安排在8～9月的凉爽季节,达到增产的目的。土豆是短日照作物,在长日照条件下有利于地上茎叶的生长,在短日照下,却有利于地下块茎的膨大生长。推迟播种,使苗期处在长日照的季节(6～7月),结薯期处在短日照季节(8～9月),有利于地上部和块茎生长。所以土豆晚播增产
Since the Cultural Revolution, the vast majority of the people in our county have made bold innovations in the “Dazhai Studies in Agriculture” campaign and have raised potatoes cultivation techniques and many high-yield typicals have emerged. Now two communes agricultural station, the three brigade station test results, concluded that potatoes high yield techniques are as follows: (A) late broadcast. My county in July the highest temperature, the average monthly temperature of 22.2 ℃, the highest 35.1 ℃. August temperature 19.5 ℃, September 14.2 ℃. The most suitable season for potato growth is from August to mid-September for more than 50 days. Evening broadcast, the knot can be arranged in the cool season from August to September, to achieve the purpose of increasing production. Potatoes are short-day crops, in the long-day conditions conducive to the growth of aerial stems and leaves, in short sunlight, but conducive to the expansion of underground tubers growth. Postponed sowing, so that seedling in the long sunshine season (June to July), in the short tuber and short sunshine season (August to September), is conducive to the growth of shoots and tubers. So late potatoes increase production