稻作配肥电算器的原理与应用

PRINCIPLE AND APPLICATION OF RICE FERTILIZER APPLICATION CALCULATER

从测试系列的生理生态指标中,选提出与土肥密切相关的品种、生育期、光照、叶色和苗情5个因素变量,建立起能囊括水稻生理、生态、个体、群体主要特征,求算肥料施用种类和数量的数学模型,经过数学处理,编成计算程序,输入微型电子计算器中,并固定下来,从而研制成多功能的新型稻作配肥电算器(简称电算器).应用时,只要按顺序输入5个因素变量,就能显示出(?)种计算功能.推广应用结果表明,效果显著.

“Rice fertilizer application calculater(RFC)”was designed in consideration of the result of“three standardization”cultural model.From a series of measurement of eco-physiological index,we selected five variant factors,i.e.,leaf colour in relaton to soil and fer-tilizer,solar radiation,growth state,variety and growth stage,and also proposed the mathe-matical model which might show the main characters of physiology,ecology,individual andcommunity.the RFC can caculate the suitable application amount of different kinds of ferti-lizer.The program with mathematical model and parameter was fixed to the calculater.whenthe above five factors are inputer into the calculater in times,the calculater will display sixkinds of calculate function.Application of rice production in a large area showed the singnifi-cantly increasing yield effect.