摘要
为选择适合无土栽培番茄生长的基质配方,运用荷兰进口设备进行番茄无土栽培试验,以草炭、蛭石、珍珠岩和砂子为基质,采用不同的混配比例,比较不同基质对番茄氮养分变化的影响。结果表明,在不同的配方基质处理下,番茄植株从基质中吸收的氮元素含量各不相同。从总体水平上看,草炭:蛭石:珍珠岩=1:1:1的基质配方要优于其他基质配方,有利于番茄对氮的吸收;而且番茄体内的氮含量有随生育期的延长而降低的趋势。
In order to select the substrate treatment which adapt to tomato growth in soilless cultivation,the experiment was studied the changes of N nutrient in tomato that was planted in substrates mixed by different ratio,including grass peat,vermiculite,perlite and sand. The results showed that the N contents of tomato absorbed from the different treatments were obviously discrepancy. From the overall level,the mixed substrates of grass peat：vermiculite：perlite = 1：1：1 was conducive to the N absorption of tomato,and it was superior to other treatments. Besides,the N content of tomato was decreasing with prolonging growth period.
出处
《中国农学通报》
CSCD
北大核心
2010年第20期275-278,共4页
Chinese Agricultural Science Bulletin
基金
北京市教委"番茄抗晚疫病优良品种选育及试验示范"(KM200710020005)
北京市农委"名特优蔬菜新品种示范和推广"(20070601)
中国绿色食品协会<北京市绿色农业蔬菜新品种选育>(2007163)
"北京市属高等学校人才强校计划资助项目"(PHR200907136)
关键词
无土栽培
氮养分
变化动态
soillness culture； N nutrient； dynamics；
