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从1973年起,我们在星火农场进行了几种形式作物与绿肥间套作的培肥改土试验。如:(1)三麦→早稻(套种田菁,放养绿萍)→后季稻→条麦(间作冬绿肥);(2)油菜或蚕豆→后季稻秧田(套种田菁)→后季稻→条麦(间作冬绿肥);(3)条麦(间作冬绿肥)→棉花(套种夏绿肥)→三麦;(4)条麦(间作冬绿肥)→玉米(套种夏绿肥)→后季稻→三麦;(5)三麦→插种夏绿肥→杂交水稻(套种田菁,放养绿萍)→条麦(间作冬绿肥)。结果表明,在基本不妨碍作物正常生长前提下,
From 1973 onwards, we conducted soil fertility improvement experiments on several forms of crop and green manure at Spark Farm. Such as: (1) the three wheat → early rice (set of farming Jing, stocking green duck) → → → after the next season rice barley (intercropped winter green manure); (2) rape or broad bean → late rice paddy field Rice → barley (intercropped winter green manure); (3) barley (intercropped winter green manure) → cotton (intercropped summer green manure) → Sanmai; (4) barley (intercropped winter green manure) → corn Quaternary rice → three wheat; (5) three wheat → intercropping summer green manure → hybrid rice (set farming Jing, stocking Green Ping) → barley (intercropped winter green manure). The results showed that under the premise of not interfering with the normal crop growth,