当前,很多果农在同一果园内混栽两种以上的果树,以此来增加单位面积产量,提高经济效益,其实这样做更多的情况下则是弊多利少。例如: 苹果和桃树混栽,尽管能增加初期产量,但几年后,由于相互争夺水分,养分,导致树势衰弱,总产量比单作果园明显下降。 苹果和梨树混栽。由于苹果锈病 At present, many fruit growers planted more than two kinds of fruit trees in the same orchard in order to increase yield per unit area and increase economic efficiency. In fact, it would be more harm than good to do so in many cases. For example, if apple and peach trees are mixed, although initial production can be increased, after several years, the total output will be significantly lower than that of monoculture orchards due to competition for water and nutrients. Apple and pear trees mixed. Due to apple rust