岷江上游干旱河谷山杏幼林地绿肥种植研究  

Experiment on Green Manure Manuring under the Young Growths of Prunus armeniaca in the Arid Valleys of the Upper Reaches of Minjiang River

作　　者：吴宗兴[1] 慕长龙[1] 刘福云[1] 周荣乾 黄泉[2] 汪明[3] 杨昌旭 

机构地区：[1]四川省林业科学研究院,成都610081 [2]四川省阿坝州林业科学研究所,汶川623000 [3]四川省理县林业局,613100

出　　处：《干旱区研究》2004年第4期395-398,共4页Arid Zone Research

基　　金：四川省林业厅"九五"科技攻关项目(编号96-156-01-02)

摘　　要：在岷江上游干旱河谷山杏幼林地连续4 a利用雨季种植绿肥压青,增加土壤肥力,提高水分利用率,促进幼树生长研究,结果表明:(1)种植红豆草的土壤0-40 cm含水量旱季增加0.39 g·kg-1,0-20 cm土壤容重降低0.01 g·cm-3;种植草木樨土壤0-40 cm含水量旱季增加0.55 g·kg-1,0-20 cm土壤容重降低0.04 g·cm-3;种植沙打旺土壤0-40cm含水量增加0.30 g·kg-1,0-20 cm土壤容重降低0.03 g·cm-3;(2)种植绿肥压青,土壤有机质增加0.10-0.46 g·kg-1,土壤CaCO3含量下降0.93-1.04 g·kg-1,有效氮增加5.9-19.3 mg·kg-1,有效磷含量增加1.26-2.46 mg·kg-1,CEC比对照增加0.68-1.00 mg·100 g-1;(3)种植红豆草、草木樨、沙打旺绿肥压青对山杏树高、径生长有显著作用,尤其种植红豆草的山杏幼树生长最好,高、径生长为对照的2.1和2.2倍。The experiment on green manure manuring is carried out in the arid valleys of the upper reaches of Minjiang River in rainy season of the successive 4 years so as to fertilizing soil, increasing moisture utilization and promoting the growth of the young growths of Prunus armeniaca. The results are as follows: (1) The moisture content in soil of 0-40 cm in depth is increased by 0 39 g/kg in dry season by planting Onobrychis viviaefolia, and the unit weight of soil of 0-20 cm in depth is reduced by 0 01 g/cm3; the moisture content in soil of 0-40 cm in depth is increased by 0. 55 g/kg in dry season by planting Melilotus officonahs, and the unit weight of soil of 0-20 cm in depth is reduced by 0.04 g/cm3; the moisture content in soil of 0-40 cm in depth is increased by 0. 30 g/kg in dry season by planting Astragalus adsurgens, and the unit weight of soil of 0 20 cm in depth is reduced by 0. 03 g/cm3; (2) By green manure manuring, the organic matter content in soil is increased by 0. 10-0.46 g/kg, the CaCO3 content in soil is reduced by 0.93-104 g/kg, and the contents of available nitrogen, available phosphorus and CEC are increased by 5.9 - 19 3 mg/kg, 1 26-2.46 mg/kg and 0.68 - 1.00 mg/kg; (3) It promotes significantly the growth of the height and surface-diameter of the young growths of Prunus armeniaca to plant Onobrychis viciaefoiia and Melilotus officonahs, especially to plant Onobrychis viciaefolia.

关 键 词：岷江上游 干旱河谷 山杏 幼林地 绿肥 栽培技术 

分 类 号：S55[农业科学—作物学]