【摘要】 因土计量施肥是目前科学施肥中最重要的研究领域之一。“土壤识别与优化施肥”是现代数学、电子计算技术应用到农业生物学、科学施肥上的一大创举。本技术的最大特点,可在不测定土壤养分的前提下,只要农民提供某田块(片)前年同季稻作的施肥量和产量,专用微机便可因地制宜、迅速准确地算出当年该田块(片)的合理施肥量并预告产量,可节省大量人力、物力和财力。本技术在福建大面积实施4年8季水稻,取得显著的增产增收效果。更多还原

【Abstract】 Soil Identification and Optimum Fertilizer Application is an excellent creation to apply modern mathematics, computer technology to the area of comprehensive fertilization. The most conspicuous character of this technique is, under the prerequisite without analysing soil nutrition, farmer needs only provide the information about the crop yield, fertilizer applied in last croping season in a given land, the special microcomputer will rapidly calculate the optimum fertilizer amount and forecast the crop yield in present croping season in the same land, thus save the labour, material and financial expenses. This technique has been popularized to the paddy field in Fujian for 4 years(from 1987 to 1990,8 croping seasons) ,the accumulative popularized area reached 16. 7 million Mu, the grain yield increased in 4-year period is more than 0. 38 million tons, the total economical benefit reached 260 million RMB Yuan. This technique has also been extender to Jiangxi, Yunnan, Guizhou, Hubei provinces, and all received good results.更多还原