摘要
以艾肯基础硅、高级硅、活性炭、脱硫石膏、磷酸铁、腐植酸和磷酸二氢铝等为原材料进行盐碱土壤改良剂的复配开发,并以耐盐水稻“超优千号”为供试品种在模拟的盐胁迫环境下进行土壤改良剂的增产效果验证。结果表明:在水稻分蘖期,撒施土壤改良剂的处理水稻植株生长指标均优于同样处于盐胁迫环境的未撒施改良剂的处理(CK2),其中T5和T6处理的效果最好,植株干重分别比CK2增加40.99%和70.60%;水稻成熟后,以T5、T6和T7处理的增产效果较好,其中T5处理产量最高,达6533.32 kg/hm^(2),比CK2增产29.97%。从T5、T6处理的改良剂配方来看,2种配方中均包含了磷酸铁、腐殖酸、钙镁磷肥,表明这几种物质在盐碱土壤改良中发挥了重要作用。
Using Elkem basic silicon,Elkem advanced silicon,activated carbon,desulfurization gypsum,ferric phosphate,humic acid and aluminum dihydrogen phosphate as raw materials,the development of saline-alkali soil amendments was carried out,and the salt-tolerant rice"Chaoyouqianhao"was used as the test variety to verify the yield-increasing effect of soil amendments under simulated salt stress environment.The results showed that at the tillering stage of rice,the growth indices of rice plants treated with soil amendments were better than those without soil amendments(CK2)in the same salt stress environment.Among them,T5 and T6 had the best effect,which increased the plant dry weight by 40.99%and 70.60%,respectively compared with CK2.At the mature stage,the yield increase effect of T5,T6 and T7 was better,and the yield of T5 was the highest,reaching 6533.32 kg/hm^(2),which was 29.97%higher than that of CK2.From the amendment formulas of T5 and T6,ferric phosphate,humic acid and fused calcium-magnesium phosphate were all included,indicating that these substances played an important role in the improvement of saline-alkali soil.
作者
何钟响
李尝君
刘尚儒
罗海艳
彭华
朱坚
简燕
HE Zhong-xiang;LI Chang-jun;LIU Shang-ru;LUO Hai-yan;PENG Hua;ZHU Jian;JIAN Yan(Hunan Institute of Agri-Environment and Ecology,Hunan Academy of Agricultural Sciences,Ministry of Agriculture Key Laboratory of Agri-Environment in the Middle Reach Plain of Yangtze River,Hunan Province Key Laboratory of Prevention,Control and Remediation of Soil Heavy Metal Pollution,Changsha 410125,PRC)
出处
《湖南农业科学》
2021年第10期36-39,共4页
Hunan Agricultural Sciences
基金
湖南省科技重大专项(2018NK-1010)。
关键词
盐胁迫
土壤改良剂
配方
耐盐水稻
salt stress
soil amendment
formula
salt tolerant rice
