冷浸田改良对水稻根系发育及产量的影响

Effect of cold waterlogged field improvement on root growth and yield of rice

以湖北省咸宁市的冷浸田为试验对象,集成不同改良措施形成一整套技术模式,通过田间试验研究冷浸田改良技术集成效果。以常规技术模式(CK)为对照,研究微肥技术模式(T1)和暖田技术模式(T2)对冷浸田水稻(Oryza sativa L.)根系发育、干物质含量和产量的影响。结果表明,T1和T2可以促进水稻根系生长发育,增加干物质含量,增加根冠比,提高水稻产量;与CK相比,T1增产12.98%,T2增产21.42%。综上所述,冷浸田集成改良措施能够增强根系形态发育,提高水稻干物质含量,达到显著增产;其中,T2通过集成挖沟排水措施降低冷水浸滞的影响,增产效果优于T1。

Taking the cold waterlogged field in Xianning city of Hubei province as the test object,the different improvement measures were integrated to form a complete set of technical models,and the best choice of the cold waterlogged field improvement model was studied through field experiments.The conventional technology model(CK)was used as a control to study the effects of micro-fertilizer technology models(T1)and warm field technology models(T2)on the root development,dry matter content and yield of rice(Oryza sativa L.)in cold-soaked fields.The results showed that T1 and T2 could promote root growth and development,increase dry matter content,the ratio of roots and shoots,and the yield of rice.Compared with CK,T1 increased yeild by 12.98%and T2 increased yeild by 21.41%.In summary,the integration of different cold waterlogged field improvement measures can enhance the root morphology development,increase the dry matter content of rice,and achieve a significant increase in yield.Among them,T2 reduces the impact of cold water stagnation through integrated trenching and drainage measures,and the yield increase effect is better than T1.