The hole shapes of seedling tray are mainly square and round. Generally, the square hole contains about 30% more matrix than the round hole, and the water distribution is more uniform, so the root system of seedlings is more fully developed.

　　The development and research of plug seedling began in 1971, and in recent years, it has been widely used for commercial seedling raising of vegetables and flowers in China. Seedling raising with plug is a new technology. The plug is divided into grids, with one seed in one hole when sowing and one plant in one hole when dividing seedlings.

　　播種在穴盤里，讓幼苗在穴盤里生長，長大后再移入苗盆，或開溝分苗，或大田種植；播種于秧盤，將秧苗移入穴盤，長大后移入秧碗，或開溝分秧，或種植；這種方式一開始占地少，特別適合早春氣溫低的時候育苗，等外界氣溫升高后再轉移到其他保護區育苗，可以降低取暖成本。如果沒有種植較大的幼苗，可以直接用穴盤苗培育。

　　育苗，由于幼苗抗逆性增強，種植不損傷根系，如果幼苗裸根往往會影響成活率，而穴盤育苗屬于帶塊移栽，所以大田種植后，幼苗延遲快，成活率高。

　　穴盤育苗以輕型基質和無土材料為基礎。這些育苗基質具有比重輕、保水性強、根系不易分散等特點，適合長距離運輸。穴盤苗重量輕，每株僅30 ~ 50克，是常規苗的6% ~ 10%?；A保水能力強，根系不易散開，可以保證苗木在運輸過程中不枯死。

　　河北程心玻璃鋼設備有限公司始終堅持“以科技求發展，以質量求生存”的方針，開拓進取，努力開拓市場。誠信和誠實的商業信譽，期待與新老朋友洽談合作，共創輝煌的明天！