Tian Shou-Le, Shen Guang-Ning, Xu Lin, Sun Xiao-Li
Shandong Pomology Institute, Tai'an 271000, Shandong, China.
Ying Yong Sheng Tai Xue Bao. 2012 Mar;23(3):639-44.
Taking the chestnut trees in a semi-arid and semi-humid hilly orchard of Tai' an, Shandong Province of East China as test objects, a field experiment was conducted to study the effects of different water-saving irrigation modes (pottery jar storing water, small hole storing water, and border irrigation with covering) on the soil moisture characteristics and the growth, fruiting, and development of chestnut roots. Comparing with the control (border irrigation), all the three water-saving irrigation modes could prolong the period of soil keeping moist, and the best effect came from pottery, jar treatment, with the soil keeping moist for 32 days, 13 days longer than the control. Under water-saving irrigations, the bearing branches length and number, leaf area and mass, and shoot mixed buds all increased obviously. Both pottery jar storing water and small hole storing water could irrigate deeper roots and induce root growth in deeper soil layers, and thus, relieve the drought stress on superficial roots. The three water-saving irrigation modes could increase chestnut yield markedly, with an increment of 18.8%, 16.5%, and 14.2%, respectively, as compared with the control.
以中国东部山东省泰安市半干旱半湿润丘陵果园的板栗树为试验对象，进行田间试验，研究不同节水灌溉方式（陶罐蓄水、小孔蓄水和覆膜畦灌）对土壤水分特征以及板栗根系生长、结果和发育的影响。与对照（畦灌）相比，三种节水灌溉方式均能延长土壤保持湿润的时间，其中陶罐处理效果最佳，土壤保持湿润32天，比对照长13天。在节水灌溉条件下，结果枝长度和数量、叶面积和质量以及新梢混合芽均明显增加。陶罐蓄水和小孔蓄水都能灌溉到更深层的根系，并诱导根系在更深土层生长，从而缓解表层根系的干旱胁迫。三种节水灌溉方式均可显著提高板栗产量，与对照相比，增幅分别为18.8%、16.5%和14.2%。
