不同氮素肥料对黑麦草生产性能的影响

进行了羊粪、沼液、尿素对黑麦草相同施N水平试验,结果表明:黑麦草的生产性能受到肥料种类影响和环境温度的控制。以羊粪、尿素和沼液为基肥种植的黑麦草产量分别为92.18t/hm28、0.04 t/hm27、8.80 t/hm2;在生长速率方面,温度低时,以尿素为基肥的生长速度较快,但是在整个生育期黑麦草的生长速率是羊粪>沼液>尿素,在平均株高方面是羊粪>尿素>沼液;在分蘖数上同样表现为羊粪>尿素>沼液。

Effect of Different Forms of N Fectilizers on the Productive Performance of Lolium Spp.

The experiment on using equivalent N of goat dung,biogas solution and urea to apply Lolium spp.was conducted.The result showed that the productive performance of Lolium spp.was affected by different forms of fertilizer and also controlled by environmental temperature.The highest amount of fertilizer equived by Lolium spp.during its growing period was N fertilizer.The biomass production using goat dung,urea and biogas solution as the basal fertilize reached 92.18t/hm2,80.04 t/hm2,and 76.17 t/hm2 respectively .Of the growing rate,the appearance of Lolium spp.was different with the various treatments of fertilizer.When the air temperature was low,the growing rate using urea as basal was relatively fast,but the order of growth rate of Lolium spp.in the whole growth period was goat dung >biogas solution >uera.Of the average plant height,the order was goat dung >urea> biogas solution.The order of tillering number was also goat >uera> biogas solution.