摘要
育苗基质中适量的养分供应是培育优质壮苗的关键。选用东北草炭和蛭石4:1配制基质,运用正交试验设计,加入不同浓度的氮、磷、钾肥料,进行了万寿菊和矮牵牛穴盘育苗研究。结果表明,不同浓度配比氮、磷、钾肥料对两种草花种苗生长的影响不同。低氮中磷钾(0.1kg/m3N、0.4kg/m3P2O5、0.4kg/m3K2O)和低氮高磷钾(0.1kg/m3N、0.8kg/m3P2O5、0.8kg/m3K2O)下,2种草花生长最快,接近或超过进口基质;万寿菊和矮牵牛种苗分别以低N中P高K(N0.2kg/m3、P2O50.4kg/m3、K2O0.8kg/m3)和中N高P高K(N0.4kg/m3、P2O50.8kg/m3、K2O0.8kg/m3)育苗效果最好。
Key problems for High quality and strong seedling cultivation are supply in seedling substrates. Effect of adding different concentrations of N, P researching on optimal nutrient and K in substrate of its composition with turf： vermiculite = 4：1 on seedling growth of marigold and petunia were studied by the orthogonal test. The results showed that effects of seedling and K with various concentrations ratio. Two kinds growth of two kinds of flowers were different among N, P of flowers grew rapidly in seedling substrates with low N and middle P and K （0.1kg/m^3 N,0.4kg/m^3 P2O5,0.4kg/m^3 K2O）, and also grew rapidly in seedling substrates with low N and high P and K （0.1kg/m^3N,0.8kg/m^3 P2O5,0.8kg/m^3 K2O）. The effects of these substrates approach or exceed those of imported substrate. Marigold seedling grew most rapidly in seedling substrates with low N , middle P and high K （N 0.2kg/m^3,P2O5 0.4kg/m^3,K2O 0.8kg/m^3）, while petunia seedling grew most rapidly in seedling substrates with middle N and high P and K（N 0.4kg/m^3,P2O5 0.8kg/m^3, K2O 0.8kg/m^3）.
出处
《中国农学通报》
CSCD
2008年第11期297-301,共5页
Chinese Agricultural Science Bulletin
基金
北京市科委"草本花卉良种繁育基地建设与示范"(D0705003000031)。
关键词
育苗基质
肥料施用
万寿菊种苗
矮牵牛种苗
seedling substrates, fertilizer application, marigold seedling, petunia seedling
