砷毒田中有机肥对水稻生长和产量的影响

Effects of Application of Pig Manure on Growth and Yield of Rice(Oryza Sativa L.)Grown on Arsenic-toic Paddy Soil

摘要: 通过田间小区试验，研究了湘南砷毒中施用氮、磷、钾化肥和有机肥（猪粪）对水稻分蘖、株高和籽粒产量的影响。试验结果表明，在正常施肥条件下（即施用氮磷肥），配合施用有机肥对水稻总分蘖数、有效分蘖数、株高和籽粒产量均有明显的抑制作用。因此，在农业生产中该地区的砷毒土壤不宜施用有机肥。

Abstract: Field expreiments were conducted to investigate the effects of pig manure on tiller numbers,plant height and grain yield of rice (Oryza Sativa L.)grown on arsenic-toxic soil in Southern Hunan Province. It was found that the application of pig manure reduced the total tiller numbers,productive tiller numbers,plant height and grain yield of the rice significantly because the manure increased the phytotoxicity of soil arsenic to the plant.Therefore pig manure was unsuitable to be applied to rice grown on arsenic-toxic soils.