控制重迎茬大豆减产农艺措施的研究

１９９４￣１９９６年在黑龙江省东部湿润、半湿润地区，西部风沙干旱土区，北部高寒黑土区，中部和南部黑土区进行了对抗重迎茬大豆品种筛选，控制重迎茬减产农艺措施和有效制剂试验研究。通过三年五个生态区试验，筛选出一批适合各区种植，耐抗重迎茬大豆土传奶部病虫害、丰产性好的品种，如嫩丰１５、抗线１号、合丰３５、黑农３９、黑交９２－１５４４和绥农１０、黑农３５等。缓解剂加施钾肥，增施有机肥，破垄夹肥和深公，多种

A comprehens've report of agronomic management practices for control yield loss of continueus and alternate-year soybean cropping

In 1994-1996, in 5 different ecoregions of Heilongjiang province some field experiments were conducted. These experiments include screening of soybean cultivars(lines) for resistance or tolerant to continuous and alternate-year soybean cropping, and test on management practices and preventive agents selection for continuous and alternate-year cropping. The experiments results indicated that some cultivars(lines) are resistant to soil-borne diseases and pests of soybean root of continuous and alternate-year cropping and with high yield, such as Kangxian 1, Hefeng 25, Heinong 39, Heijiao 92-1544, Suinong 10 and Heinong35. Agronomic management potassium fertilizer, application of organic fertilizer, splitting of ridges for adding fertilizer, deep digging, and several seed-coat-agents are recommended, special agents for continuous soybean cropping can reduce effectively soybean yield loss of continuous and alternate-year cropping.