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品种间轮作和作物轮作,是两个不同的概念。作物轮作,是指两种以上不同的作物,轮换在一块地上进行种植;品种间轮作,是指一种作物,两种以上品种,轮换在一块地上进行种植。大豆品种间轮作试验的目的,就是从大豆重迎茬种植中,找出一条大豆增产的途径,使大豆重迎茬造成的减产损失达到最低限度。实验分两组进行。1、2、3号地块为一组,4、5、6号地块为二组(数字代表地块)。每组地块肥力均匀一样,地势平坦,药剂处理、施肥、播种量及播种方法都一样。一组实验种植品种为黑河9。 1号地块前茬作物为小麦——大豆(黑河9),作物轮作为小麦—大豆(黑河9)—大豆(黑河9),大豆黑河9属于重茬种植;2号地块,前茬作物为大豆(黑河9)、小麦,作物轮作为大豆(黑河9)—小麦—大豆(黑河
Intercrop rotation and crop rotation are two different concepts. Crop rotation refers to the cultivation of more than two different crops on a single rotation. The rotation between cultivars refers to a crop and two or more varieties are cultivated on the same rotation. The purpose of the rotation test among soybean varieties is to find out a way to increase yield of soybean from the planting of soybean in continuous cropping, so as to minimize the loss of yield caused by soybean replanting. The experiment was divided into two groups. 1, 2, 3 plots as a group, 4, 5, 6 plots for the two groups (number represents the plot). The fertility of each group of plots is the same, flat topography, pharmaceutical treatment, fertilization, sowing and sowing methods are the same. A group of experimentally cultivated varieties is Heihe 9. The former crop of plot 1 was wheat-soybean (Heihe 9) and the crop was wheat-soybean (Heihe 9) -soy (Heihe 9). Soybean Heihe 9 belonged to continuous cropping. On the 2nd block, the former crop was Soybean (Heihe 9), Wheat, Crop Wheels as Soy (Heihe 9) - Wheat - Soya (Heihe