广东水稻生产潜力及影响因素分析

Analysis of Rice Potential Productivity and Its Affect Factors in Guangdong Province

利用广东省各稻作区的光、温、土壤等资料,推算出水稻光能利用率、土壤生产潜力影响系数、栽培技术影响系数,逐级建立了水稻光温潜力、土壤生产潜力、栽培生产技术潜力等模型;广东各稻作区的光温潜力为20.07～23.77 t/hm2 、土壤生产潜力为9.78～15.94 t/hm2;广东省水稻大田高产栽培实验结果只达到光温潜力的1/3～1/2。进一步讨论了数学建模方法、水稻栽培技术作用、水稻品种遗传改良等问题。

Utilizing materials like light, temperature, soil of each rice making area of Guangdong Province, the authors calculated rice light energy utilization ratio, soil productive potentiality influence coefficient, cultivation technique influence coefficient, and set up the models , such as rice light temperature potentiality , soil productive potentiality , culture production technology potentiality ,etc. step by step. Light temperature potentiality of each rice making area of Guangdong Province is 20.07-23.77 t/hm2, and soil productive potentiality is 9.78-15.94 t/hm2. The result of high yield culture experiment in land for growing field crops of rice in Guangdong Province only reaches 1/3- 1/2 of light temperature potentiality. Mathematics modeling method, rice cultivation technique function, and rice Variety hereditary improvement were discussed.