上期介绍了作物布局的一种方法——线性规划中的单纯形法。下面将介绍另外几种方法。(二)表上作业法[例14]某生产队有旱地100亩,其中一类地60亩,二类地30亩,三类地10亩。计划播种大豆、高梁、红薯三种作物,其播种面积分别是20、40、40亩。一、二、三类地种植大豆的亩产分别是220、200、100斤,种植高梁分别是350、300、200斤,种植红薯分别是400、0、300斤。要如何布局,才能使作物总产量最大?(亩产量均折成粮食计算) The last issue introduced a method of crop layout - the simplex method in linear programming. Here are some other ways. (II) Operation Chart on Form [Example 14] A production team has 100 mu of dry land, including 60 mu in the first type, 30 mu in the second type and 10 mu in the third type. Sow planted soybean, sorghum, sweet potato three crops, the sown area is 20,40,40 acres. One, two and three kinds of planting soybean per mu were 220,200,100 kg, respectively, planting sorghum 350,300,200 pounds, planting sweet potatoes were 400,0,300 pounds. How to layout, in order to maximize the total crop? (Yield per mu converted into grain calculation)