effective of difference concentration of nutrient solution on the growth of batavia lettuce grown by hydroponic technique ឥទ្ធិពលនៃកំហាប់សូលុយស្យុងខុសៗគ្នាលើការលូតលាស់ដំណាំសាលាដពូជ(batavia) ដែលដាំដុះតាមបច្ចេកទេស(hydroponics)
- phom penh RUA 2014
- viii;42; illl; 29cm;