摘要
采用盆栽试验方法 ,研究了在盐碱土中分别施入不同比例草炭和风化煤的改良效果及对作物的增产效果。结果表明 :草炭和风化煤增加了土壤速效养分 ,降低了土壤的 pH值、ESP、Na+/K+、Na+/Ca2 +和Na+/Mg2 +,增强了土壤的团聚性 ,改善了盐碱土的养分供应状况 ,增加了作物的产量。各处理中以施入 4%草炭的增产效果较好。
The effect of soil improvement and rice yield increase of applying the different ratio of peat and weathered coal on salinization soil was studied by pot experiment.The results showed that the organic matters improved available nutrients in soil, decreased pH, ESP,Na +/K +,Na +/Ca 2+ and Na +/Mg 2+ , strengthened aggregate ability of soil increased the capacity of holding and supplying nutrient, enhanced the yield of rice.Among 7 treatments the better effect of increasing yield was the treatment with 4% peat.
出处
《河南农业科学》
CSCD
北大核心
2004年第8期57-60,共4页
Journal of Henan Agricultural Sciences
基金
国家自然科学基金
黄河联合基金(5 0 3790 4 8)资助
关键词
草炭
风化煤
盐碱土
改良效果
Peat
Weathered coal
Salinization
Amelioration effect
