摘要
This study was to find out the suitable application amount of plant-derived humic acid organic fertilizer for selenium-rich rice production in northern Guilin area by applying the fertilizer at different amounts. The results showed that plant-derived humic acid organic fertilizer could effectively activate selenium in selenium-rich soil, and then promote the uptake of selenium by rice. With costs, selenium enrichment and rice yield as the main evaluation indicators, A4 was chosen as the best treatment, that is, the application of 4 500 kg/hm~2 of plant-derived humic acid organic fertilizer as base fertilizer could achieve the best benefit.
This study was to find out the suitable application amount of plant-derived humic acid organic fertilizer for selenium-rich rice production in northern Guilin area by applying the fertilizer at different amounts. The results showed that plant-derived humic acid organic fertilizer could effectively activate selenium in selenium-rich soil, and then promote the uptake of selenium by rice. With costs, selenium enrichment and rice yield as the main evaluation indicators, A4 was chosen as the best treatment, that is, the application of 4 500 kg/hm~2 of plant-derived humic acid organic fertilizer as base fertilizer could achieve the best benefit.
引文
[1]LIU Z.Microelements in Soils of China[M].Nanjing:Jiangsu Science and Technology Press,1996:330-332.
[2]CHENG BR,JU SJ,YUE SR,et al.Selenium grain and human selenium level[J].China Environmental Science,1982,2(5):28-31.
[3]GUAN EX,JIANG SQ,TAN XS,et al.Effects of selenium fertilizer spraying on rice yield and selenium content[J].China Seed Industry,2012,(5):43-45.
[4]SHI AH,PENG ZQ,ZHANG YY,et al.Research and development of selenium-rich rice in China[J].Trace element and health research,2015,32(1):31-32.
[5]ZHAO SH,YU WT,ZHANG L,et al.Study progress on the extraction species of selenium from soil-plant system[J].Chinese Journal of Soil Science,2006,37(2):2395-2397.
[6]LI SN,YUE SZ,LI HF,et al.Effects of Se-enriched organic fertilizers on selenium accumulation in corn and soil[J].Journal of Agricultural Resources and Environment,2015,(6):571-576.
[7]AN MY,ZHANG Q,ZHANG ZD,et al.Effects of different amounts of humic acid on the content of soil available selenium,the forms of selenium and the selenium absorption in garlic[J].Journal of Agricultural Resources and Environment,2017,34(2):128-133.
[8]ZHANG Q,CHEN MJ,HUANG XY,et al.A regulator for promoting selenium activation in selenium-containing dryland soils:CN106699443A[P].2017.
[9]HE LX,SHI ML,YANG JH,et al.Present situation and countermeasures of exploitation and utilization of selenium resources in Guangxi[J].Journal of Guangxi Agriculture,2014,10(5):84-87.