摘要
研究了党参不同生长期的养分含量以及吸收量,结果显示,党参整个生长期对N、P2O5、K2O的吸收比例平均为1∶0.51∶0.27;不同时期整株养分净吸收量由高到低依次为N、P2O5、K2O,每生产1t干党参,需吸收N 43.7 kg、P2O5 22.6 kg、K2O 11.9 kg,N∶P2O5∶K2O=1∶0.52∶0.27。
The fertilizer requirement regularity of lanceolata through nutrient content and absorbing capacity analytic of lanceolata in different growth period was studied.The results showed that the average ratio of N,P2O5,K2O is 1∶0.51∶0.27 in wholegrowth period of lanceolata.the net nutrient absorbing capacity sequence of plant is N,P2O5,K2O in different growth period,the plantassimilates N 43.7 kg,P2O5 22.6 kg and K2O 11.9 kg for each 1 000 kg dry lanceolata,the ratio of N,P2O5,K2O is 1∶0.52∶0.27.
出处
《甘肃农业科技》
2010年第10期11-12,共2页
Gansu Agricultural Science and Technology
基金
甘肃省农业科学院科技支撑计划(nky07-js-07)
中国科学院科技支甘项目"长效缓释复混肥产业化与示范推广"部分内容
关键词
党参
需肥规律
研究
Lanceolata
Fertilizer requirement regularity
Study
