蔬菜施用的底肥多以雞糞為主。雞糞的優點是養分全、含量高,其中有機物含量24%左右,氮、磷、鉀2%以上,另有多種微量元素和氨基酸、有機酸和植物生長激素等。按全國有機肥品質標準,雞糞屬於二級,優於其他畜禽糞。
但dan雞ji糞fen中zhong尿niao素su態tai的de氮dan易yi分fen解jie流liu失shi,且qie隨sui著zhe水shui分fen的de增zeng加jia,氮dan素su損sun失shi增zeng多duo。特te別bie是shi雞ji糞fen堆dui肥fei腐fu熟shu容rong易yi發fa熱re,又you可ke造zao成cheng氮dan素su揮hui發fa,屬shu熱re性xing肥fei料liao。所suo以yi,雞ji糞fen的de積ji存cun以yi幹gan燥zao存cun放fang為wei宜yi,存cun放fang時shi在zai雞ji糞fen中zhong加jia入ru適shi量liang的de過guo磷lin酸suan鈣gai可ke起qi到dao保bao肥fei的de作zuo用yong。雞ji糞fen中zhong的de有you機ji物wu和he尿niao素su態tai的de氮dan不bu能neng被bei作zuo物wu直zhi接jie吸xi收shou利li用yong,必bi須xu經jing過guo漚ou製zhi,使shi雞ji糞fen中zhong的de有you機ji質zhi變bian為wei腐fu殖zhi質zhi和he可ke溶rong性xing的de氮dan為wei作zuo物wu利li用yong,防fang止zhi發fa生sheng肥fei害hai。另ling外wai,未wei腐fu熟shu的de雞ji糞fen容rong易yi發fa生sheng蟲chong害hai,如ru地di蛆qu、腐生線蟲等。生肥施入土壤中接觸到根係會燒傷根部,造成黑根、短根和粗根,根係不發達,植株黃化,萎蔫,嚴重影響生長。因此,應用雞糞或其它有機肥,必然預先漚製腐熟好,方可施用。
堆肥時,將雞糞、玉米秸或麥秸、雜草(秸稈鍘成5厘米碎段)jiarushiliangshuifenhuorenfenniao,zuihaozaijiarushiliangdeguolinsuangai,gongtongduiji。duihaohou,yongxinitufengbi,waigaiyicengsuliaobu,fangzhiyulinliushi。tongguolieribaoshai,duifeineigaowenkeda70℃左右,可將堆肥中的病菌、蟲卵、caozhongdengshasi,qidaoshachongmiejundezuoyong。banyuezuoyouzaifandaoyicidui,zhongxinfenghao,shiduifeichongfenfushuhao。zheyangdefeiliaozhilianggao,feixiaohao,shiyonghoukeyibeizuowuxishouliyong,wufeihai、無病蟲害,無毒害,改良土壤,培肥地力,提高產量和品質。
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