为探索适合黑龙江地区推广的耕地轮作制度,本试验对汉麻、大豆进行连作和轮作处理,分析不同处理对大豆、汉麻农艺性状、产量及经济效益的影响。结果表明,轮作提高了大豆的株高、茎粗、主茎节数、有效节数、单株有效荚数、单株重、单株茎重、单株荚重、单株荚皮重、单株粒数、单株粒重和百粒重,以及汉麻的株高、茎粗、分枝高、分枝数、单株粒数、单株粒重和千粒重,降低了大豆的底荚高和单株瘪荚数。相关性分析结果表明,大豆除底荚高和单株瘪荚数与产量呈负相关,其余农艺性状与产量均呈正相关;汉麻的株高、单株粒数与产量呈明显正相关（P<0.01）。轮作提高了大豆、汉麻产量和产值,净收益比连作分别增加了1 877.95和2 636.40元/hm²。

In order to explore a suitable farmland rotation system for promotion in Heilongjiang Province, this experiment conducted continuous cropping and rotation treatments on hemp and soybean, the effects of different treatments on the agronomic traits, yield, and economic benefits of soybean and hemp were analyzed. The results showed that crop rotation increased the plant height, stem thickness, number of main stem nodes, effective nodes, number of effective pods per plant, plant weight, plant stem weight, plant pod weight, plant pod skin weight, plant grain number, plant grain weight, hundred grain weight of soybean, as well as the plant height, stem thickness, branching height, branching number, plant grain number, plant grain weight, and thousand grain weight of hemp, while reducing the bottom pod height and number of deflated pods per plant of soybean. Relevant analysis showed that, except for the height of bottom pods and the number of flattened pods per plant, soybean had a negative correlation with yield, while other agronomic traits were positively correlated with yield. The height and number of grains per plant of hemp were significantly positively correlated with yield（P<0.01）. Crop rotation had increased the yield and output value of soybeans and hemp, with a net income of 1 877.95 and 2 636.40 yuan/hm², respectively, compared to continuous cropping.