云南省普洱市景谷高產(chǎn)脂思茅松嫁接扦插苗介紹和特點(diǎn):
一般思茅松年均株產(chǎn)2—3公斤松脂,目前發(fā)現(xiàn)天然林中產(chǎn)量最高一刀1公斤,一個(gè)月能產(chǎn)10公斤(胸徑62厘米),利用它的枝條嫁接10年(胸徑20厘米),便開始采割40%割面,一刀能產(chǎn)一公兩,一個(gè)月能產(chǎn)一公斤,證明嫁接扦插等無性繁殖方法能保持產(chǎn)高產(chǎn)松脂遺傳特性。 2002年在景谷縣九個(gè)鄉(xiāng)(鎮(zhèn))選擇高產(chǎn)松脂優(yōu)樹89株,嫁接在同一地塊,3年后同時(shí)采割,選擇出產(chǎn)量最高的3株(比其它高出近3倍),我們用這三棵松樹枝條嫁接嫩化,再剪去扦插育苗建立采穗圃,專用于采枝條扦插育苗,3個(gè)月生根,移栽營養(yǎng)袋中煉苗三個(gè)月方可栽種。
特點(diǎn)是:1、育苗時(shí)間要半年,一年四季都在育苗;2、從剪口生根、基部突起彭長,不長直根,明顯區(qū)別于種子苗;3、扦插三個(gè)月才生根,枝條從綠變黃,移栽至營養(yǎng)袋2個(gè)月才逐漸變綠,沒有種子苗好看,但栽種后生長快,只要每年都施1—2次復(fù)合肥,5—6年能長到胸徑18—20厘米可以采割。如不施肥,8—10年胸徑可長到18—20厘米可以采割;4、一刀產(chǎn)量1.2公兩,可能要一刀收一次,松節(jié)油含量不低于30%,松脂收購價(jià)格可能更高;5、松脂產(chǎn)量高的松樹比一般松樹長得快;嫁接比種子點(diǎn)播長得快,扦插又比嫁接長得更快。苗圃地創(chuàng)始人李明原是景谷林業(yè)股份公司松脂研究基地工程師,從1997年開始同地區(qū)林科所、省林科院專家一起進(jìn)行思茅松采松脂研究工作,2005年由于該公司停止此項(xiàng)研究,當(dāng)時(shí)松樹(老枝)扦插剛成功,就從公司辭職,自己投資建設(shè)自動(dòng)噴水工廠化扦插育苗基地,出售給農(nóng)民種植,到2013年9月份止,累計(jì)出售近50萬株,種植6000多畝,由于是農(nóng)戶分散種植,從一畝到十畝的最多,最多的幾戶也只有50畝左右,沒有形成規(guī)模,加上種植農(nóng)戶在觀望是否真的象介紹一樣提高3—4倍,沒有引起重視,2012年4月,第一批種植10年(沒有施肥),最大樹木胸徑26厘米,絕大多數(shù)為胸徑18—20厘米,按40%采割一刀能產(chǎn)120克,即一個(gè)月能產(chǎn)1公斤,一年能產(chǎn)10公斤(株株都一樣,近似于嫁接過的橡膠樹),景谷林化有限公司在孟連有3萬畝林地,于2013年6月種植1300畝近9萬株苗,引起市林業(yè)局領(lǐng)導(dǎo)關(guān)注。較早種植農(nóng)戶也開始試割,株株都象采割1000棵天然中最出松脂高的那株一樣。
景谷高產(chǎn)脂思茅松苗圃有限公司 聯(lián)系人:李經(jīng)理 聯(lián)系:13577915532
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問題補(bǔ)充:
嫁接扦插高產(chǎn)脂思茅松苗