水土农化因子与利川莼菜产量的相关关系研究

Correlation of Agricultural Chemistry Factors in Water and Soil and the Yields of Brasenia schreberi in Lichuan

随机检测了5处主产区水土的农化因子,并分析了与莼菜生长发育和产量的相关关系。结果显示,虽然各田块间部分因子存在极显著或显著差异,但基本低于相关标准或处于前人研究的正常值范围内。说明莼菜田水土未受到人类农事活动的污染,化学性质总体上较稳定,田块间莼菜生长发育和产量未出现显著差异,且与农化因子之间也无显著相关性。说明当前莼菜田水土和周边生态环境条件良好,莼菜的生长和产量可能主要与栽培管理措施有关,该研究结果为探索莼菜高产栽培技术和制定保护策略奠定了基础。

The agricultural chemistry factors in water and soil and the correlations between the growth and yields of this plant were detected randomly and analyzed successively in 5 different villages.The results indicated that although some factors in water and soil among the fields showed extremely significant and significant difference,the contents were far lower than the relate standards or in the normal ranges of previous studies.The chemistry characters in fields maintained stability and were not affected by the pollutions of nearby farming activities,and the growth and yields of water shield also did not show significant different between fields.The correlation analysis also showed that the agricultural chemistry factors in the water and soil did not exert substantial effect on the growth and yields of water shield.These results indicated the water and soil quality and eco environmental conditions were better,and the growth and yields of water shield were mainly attributed to the cultivations and managements by the farmers.This research would lay the foundation for cultivation of higher yield and formulating a protection policy of this plant resource.