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Drip irrigation pipe, drip irrigation tape, micro sprinkler head,

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Qinzhou City, Guangxi Province supplies high-quality fruit tree drip irrigation equipment

total supply
10000 米
MOQ
1 米
area
HebeiShijiazhuang City
Delivery period:
Shipped within 3 days from the date of payment by the buyer
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Shop information

area:Hebei Shijiazhuang City

Member level:corporate memberYear1

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Shijiazhuang Yirun Water Saving Technology Co., Ltd.

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Product Details
 对于果农来说,掌握灌溉技术不仅能提高水果产量,还能起到事半功倍的效果,达到节省人力、财力、物力,获得高收益的目的。不同果树的需水规律不同,浇灌方法也不同,本文从果树的需水规律和浇灌方法两方面介绍节水灌溉的前沿技术。   
    果树需水规律 
   
  按照抗旱能力和需水量不同,可将果树分为以下三类:一是抗旱力强的石榴、桃、杏、枣、核桃、无花果等;二是抗旱力中等的苹果、梨、柿、李、樱桃、柑桔等;三是抗旱力弱的香蕉、枇杷、杨梅等。 
   
  果树需要水分,但并不是水分越多越好,有时果树适度的缺水还能促进果树根系往深处扎,抑制果树的枝叶生长,减少剪枝量,并使果树尽早进入花芽分化阶段,使果树早结果,并可提高果品的含糖量及品质等。 
   
  节水灌溉技术 
   
  1.灌水时间:给果树灌水应在果树生长未受到缺水影响以前就进行,不要等到果树已从形态上显露出缺水时才灌水。如果出现果实皱缩、叶片卷曲等现象时才灌溉,对果树的生长和结果将造成不可弥补的损失。 
   
  确定果树灌水时间,主要根据果树在生长期内各个物候期的需水要求,及当时的土壤含水量而定。一般应抓好如下四个时期的灌水: 
   
  花前水,又称催芽水。在果树发芽前后到开花前期,若土壤中有充足的水分,可促进新梢的生长,增大叶片面积,为丰产打下基础。因此,在春旱时期,花前灌水能有效促进果树萌芽、开花和新梢叶片生长,提高坐果率。一般可在萌芽前后灌水,提前灌水效果更好。 
   
  花后水,又称催梢水。果树新梢的生长和幼果膨大期是果树的需水临界期,此时果树的生理机能最旺盛。如果土壤水分不足,会使幼果皱缩和脱落,影响根系的吸收功能,减缓果树生长,明显降低产量。因此,这一时期若遇久旱无雨天气,应及时灌溉,一般可在落花后15天左右至生理落果前灌水。 
   
  花芽分化水,又称成花保果水。就多数落叶果树而言,此时正值果实迅速膨大及花芽大量分化时期,若遇干旱,及时灌水。 
   
  休眠期灌水,即冬灌。一般在土壤结冻前进行,可起到防旱御寒作用,且有利于花芽发育,促使肥料分解,有利于果树次年春天生长。 
   
  2.灌水次数:果树在各个物候期内的灌水次数主要取决于各个时期的降水量和土壤水分状况。一般年份,上述各个灌水时期通常灌水一次即可满足果树该时期的需水要求。
 
  3.灌溉水量:果树的灌水量依果树种类、品种和砧木特性、树龄大小及土质、气候条件而有所不同。枣、板栗等耐旱力强的树种可少灌,葡萄、梨等耐旱性差的树种可多灌。幼树少灌,结果树多灌。沙地果园宜小水勤灌。一般成龄果树最适宜的灌水量以水分完全湿润果树根系范围内的土层为宜。在采用节水灌溉方法的条件下,要达到的灌溉深度为0.4~0.5米,水源充足、旱情严重时可达0.8~1米。
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