江苏省主要水稻种植模式技术对比分析

Comparative analysis of major rice cropping pattern technology in Jiangsu province

江苏是水稻种植大省,近几年来以机插秧为代表的水稻种植机械化得到长足发展,但关于直播稻和机插秧哪种栽培模式较优的讨论也越来越多,值得我们深入研究。在研究直播稻和机插秧不同生长环节的差异性的基础上,研究各因素与产量之间、成本之间的相关性,提出主要影响因子。从试验的情况来看,机插秧技术具有增产优势,直播稻技术具有节本优势,在收益方面直播稻技术较优。直播稻产量的主要影响因子是播种量、基本苗数、成穗数;机插秧产量的主要影响因子是分蘖势、成穗数。

Recently, rice cropping mechanization has been developing fairly welt in Jiangsu province, which is represented by rice transplanting with machine, thus, whether direct seeding or transplanting with machine is better has aroused more and more discus- sions. Based on differences in different growth periods of direct seeding and transplanting with machine, relations between each fac- tors, yield and cost are studied in this paper, and then, the main factors are put forward. Through the test, rice transplanting with machine has the advantage to increase production, direct seeding rice has the advantages of cost-saving and higher revenue. The main factors of direct seeding rice to affecting the yield are seeding amount, basic seedlings and ear numbers, The main factors of rice trans- planting with machine to affecting the yield are tillering potential and ear numbers.