
對環境與土(tu)壤(rang)(rang)的(de)要求。(1)溫(wen)(wen)(wen)度。火(huo)(huo)龍果(guo)(guo)喜溫(wen)(wen)(wen)暖,最佳(jia)生長(chang)溫(wen)(wen)(wen)度為(wei)20~30℃,較高的(de)晝(zhou)夜(ye)溫(wen)(wen)(wen)差有利(li)于(yu)養分的(de)積累。實驗(yan)數據表(biao)明,火(huo)(huo)龍果(guo)(guo)植(zhi)株在8℃生長(chang)緩慢,低(di)于(yu)4℃會受(shou)凍害,高于(yu)35℃或低(di)于(yu)8℃時(shi)則進(jin)入休眠(mian)或半(ban)休眠(mian)狀態。(2)光(guang)照。火(huo)(huo)龍果(guo)(guo)喜光(guang)但(dan)也較耐陰,充足的(de)光(guang)照可使植(zhi)株強壯,多(duo)孕蕾,反之可導致(zhi)植(zhi)株徒長(chang)。(3)土(tu)壤(rang)(rang)。火(huo)(huo)龍果(guo)(guo)對土(tu)壤(rang)(rang)的(de)適應(ying)性(xing)很強,但(dan)以(yi)(yi)疏(shu)松透(tou)氣、排水(shui)(shui)良(liang)好、保水(shui)(shui)保濕(shi)性(xing)強、富含(han)有機質的(de)壤(rang)(rang)土(tu)為(wei)好,土(tu)壤(rang)(rang)pH值(zhi)6~7為(wei)宜,黑黏土(tu)、紅黏土(tu)應(ying)摻以(yi)(yi)沙子(zi)、稻(dao)殼、鋸末、草炭等進(jin)行改良(liang)。
種(zhong)植(zhi)(zhi)方式。(1)育苗(miao)。火(huo)龍果工廠化育苗(miao)多采用(yong)營養枝(zhi)條(tiao)扦插無(wu)性繁殖法。要(yao)求(qiu)品種(zhong)優良,枝(zhi)條(tiao)健壯無(wu)病蟲害,扦插時(shi)(shi)種(zhong)條(tiao)要(yao)進行嚴格的(de)藥劑處理,苗(miao)圃(pu)宜(yi)選擇土壤肥(fei)沃、排(pai)水(shui)(shui)(shui)良好(hao),通(tong)風向陽的(de)田塊,小苗(miao)定植(zhi)(zhi)后,7~10天(tian)澆1次水(shui)(shui)(shui),10~15天(tian)施1次復(fu)合肥(fei),待長(chang)出(chu)(chu)第一(yi)節飽滿的(de)肉(rou)質莖,植(zhi)(zhi)株高50厘米(mi)以上(shang)時(shi)(shi)即(ji)可出(chu)(chu)圃(pu)。(2)大田定植(zhi)(zhi)。畦(qi)(qi)(qi)(qi)面寬1.4米(mi),兩(liang)畦(qi)(qi)(qi)(qi)間(jian)(jian)預留(liu)40厘米(mi)間(jian)(jian)隙做(zuo)20厘米(mi)深的(de)溝(gou),溝(gou)內土均勻撒在(zai)(zai)畦(qi)(qi)(qi)(qi)面上(shang),使畦(qi)(qi)(qi)(qi)面中間(jian)(jian)高兩(liang)肩低。(3)種(zhong)植(zhi)(zhi)密度。以水(shui)(shui)(shui)泥柱(zhu)(zhu)水(shui)(shui)(shui)平棚架為(wei)例,行距1.5~1.8米(mi),株距1.2米(mi),一(yi)柱(zhu)(zhu)雙(shuang)株。畝(mu)留(liu)苗(miao)600~700株。(4)棚架設計。在(zai)(zai)每(mei)畦(qi)(qi)(qi)(qi)的(de)中間(jian)(jian)埋水(shui)(shui)(shui)泥柱(zhu)(zhu),于(yu)每(mei)根水(shui)(shui)(shui)泥柱(zhu)(zhu)南(nan)側栽(zai)種(zhong)兩(liang)株,在(zai)(zai)柱(zhu)(zhu)頂部用(yong)10#鐵絲做(zuo)成空間(jian)(jian)網(wang),用(yong)以吊固果枝(zhi)。(5)適時(shi)(shi)定植(zhi)(zhi)。火(huo)龍果一(yi)年(nian)四季均可種(zhong)植(zhi)(zhi),但(dan)以3~5月為(wei)宜(yi)。
病蟲(chong)害防治。火龍果(guo)在(zai)原產地為(wei)野生(sheng)型(xing),抵御(yu)病蟲(chong)害的能力很強(qiang),但偶有(you)螞蟻危(wei)害生(sheng)長點,可用辛(xin)硫磷拌麩皮或稻(dao)糠(kang)兌水(shui)1000倍澆根(gen),或800倍敵(di)百蟲(chong)藥液噴根(gen)。最根(gen)本的辦法應從改善栽(zai)培條件入手,人為(wei)創造凈潔、通風(feng)、光照充足、溫濕度適宜的環境使植株健康生(sheng)長,提高抗病蟲(chong)能力。要(yao)注(zhu)意加強(qiang)科學管(guan)理,不施未腐熟的有(you)機(ji)肥,施肥寧(ning)稀勿(wu)濃(nong)(nong),防止田間積(ji)水(shui)。常用的殺菌(jun)劑(ji)有(you)代森(sen)鋅(濃(nong)(nong)度0.15%~0.35%)、多(duo)菌(jun)靈(ling)或托布津(濃(nong)(nong)度為(wei)0.1%)等。 (張立)













