available nitrogen meaning in English
有效氮
Examples
- The enrichment rate of organic matter and total nitrogen is close , but the enrichment rate of available nitrogen is higher
有机质与全氮的富集率基本一致，水解氮的富集率很高。 - A preliminary study on the dynamics of bio - available nitrogen in soils of pine - broadleaf mixed forest in dinghuashan biosphere reserve
鼎湖山马尾松针阔叶混交林土壤有效氮动态的初步研究 - As the increase of water added , the level of no3 - n in soils was decreased , in comparison with fif , it is concluded that dif significantly decreased the leaching loss of urea - n from soil , and increased the available nitrogen in soil
总之，与浇灌施肥相比，滴灌施肥显著地减少了尿素态氮的淋溶损失，增加了土壤中有效态氮的含量。 - The results showed that the index of organic matter , total nitrogen , total phosphorus , available nitrogen , phosphorus and potassium in 16 - year - old organic tea garden were higher than those of 10 - year - old and 4 - year - old
结果表明， 16年生有机茶园土壤在有机质、全氮、全磷、速效氮、速效钾等各项指标上均高于10年生和4年生有机茶园土壤。 - For nutritional substance exists in organic state with weak process of mineralization , the available elements are low , especially a lack of available nitrogen and phosphorus , the soil condition can not meet the needs of plant growing
。有机质含量高，其总氮总磷和钾的储量较丰富。由于矿化作用弱，营养物质缺乏，特别是有效氮和有效磷的缺乏难以满足植物的生长。