土壤调理剂应用效益的探索

为明确土壤调理剂对水稻的生长发育及对土壤理化性状的影响,于2015、2016年在谷城县实施土壤调理剂试验。结果表明,施用土壤调理剂较对照土壤p H和阳离子交换量有不同程度的提高,增幅均与施用土壤调理剂的量呈正相关,以施1 800 kg/hm~2处理效果最佳。施用土壤调理剂对土壤养分含量影响不大,对改良土壤结构影响有限,对当季水稻产量有增产作用,且增产幅度与土壤调理剂施用量呈正相关,以施1 800 kg/hm~2处理的增产幅度最大。

Exploration on the Application Benefit of Soil Conditioner

In order to clarify the effects of soil conditioner on rice growth and soil physical and chemical properties, the test about soil conditioner was implement in Gucheng county in 2015 and 2016. The test results of the two years showed that soil pH and cation exchange capacity could increase by different degrees positively correlation with application amount of soil con-ditioner through the application of soil conditioner in contrast with the check treatment, and the best treatment effect was the application of the amount of 1800 kg/hm2. The application of soil conditioner had little effect on soil nutrient content and limited effect on improving soil structure and could help increasing yield of the seasonal rice with positively correlation with amount of fertilization, and the best treatment effect was the application of the amount of 1800 kg/hm2.