重迎茬对大豆化学品质的影响

在中国黑龙江省６个不同生态区设置固定轮作场圃，连续３年研究重迎茬大豆蛋白质、脂肪的变化情况。结果表明，迎茬和短期重茬对大豆蛋白质、脂肪含量无明显影响，重茬３年以上，蛋白质含量增加，脂肪含量降低。农艺措施对重迎茬大豆蛋白质、脂肪含量没有明显的影响，化学调节剂以重迎茬大豆蛋白质、脂肪含量有一定的影响。

THE EFFECT OF ALTERNATE-YEAR AND CONTINUOUS SOYBEAN ON PROTEIN AND OIL CONTENT OF THEIR SEEDS

The change of protein and oil of alternate-year and continuous soybeans by setting up rotation nurseries at 6 different ecoregions in Heilongjiang Province, China. The result shown that protein and oil contents were not effected significantly when soybeans were planted alternate-year and continuously. If soybeans were planted more than 4 years continuously, protein content of seeds would be increased, and oil content would be reduced. Agronomic methods, which will reduce the constraints of continuous soybeans to yield, would not effect on protein and oil content of seeds. And how and then some chemical regulators effect protein and oil content.