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山楂Crategus Pinnaitfida Bunge又称红果或山里红,是安阳市重要的经济林树种。但由于过去缺乏科学的栽植与管理,品种混杂现象比较严重,导致一些好的品种其优良特性未能充分发挥出来。近几年我们筛选了5个主栽品种,进行了不同品种、不同树形与产量相关关系的研究,探讨适合安阳市和豫北地区栽培的优良品种和最佳树形。1 试验地概况 试验地位于林州市采桑乡,东径114°26′,北纬36°02′,立地为浅山丘陵区,褐壤土,有机质含量0.87×10~(-2),pH值7.5;年平均气温12.7℃;年平均降水量550.7毫米,多集中在7～8月份;4～6月份干旱少雨;无霜期192天。2 试验内容和方法 参试品种有豫北红、大金星、敞口、林红和小棉球(作对照);树形采用,圆柱(锥)形,两层开心形,疏散分层形。试验园于1988年定植,密度3×4米。3 结果分析 参试品种,分别采用3种不同的整形修剪形式。1993年对6年生树进行了产量调查作统计分析。每个品种分别3个不同树形布点各抽取4个样方,每个样方为1亩。现统计分析如下:
Hawthorn Crategus Pinnaitfida Bunge, also known as red or mountain red, is an important economic forest Anyang City species. However, due to the lack of scientific planting and management in the past, the phenomenon of mixed species is more serious, resulting in the good characteristics of some good varieties that have not been brought into full play. In recent years, we screened five main cultivars, conducted a study on the relationship between different varieties and different tree types and yield, and explored the best cultivars and tree species suitable for cultivation in Anyang and North Henan. 1 Experimental Site The experimental site was located at Cai Sang Township, Linzhou City, with a 114 ° east longitude and 36 ° 02 north latitude. The site was shallow hills and hilly areas with brown soil, organic matter content 0.87 × 10 -2, pH 7.5 ; The annual average temperature is 12.7 ℃; the annual average precipitation is 550.7 mm, mostly concentrated in July and August; dryness is little in April and June; frost-free period is 192 days. 2 test content and methods Varieties of the test North of Henan red, Venus, open, Lin Hong and cotton balls (as control); tree using, cylindrical (cone) shape, two happy shape, evacuation layered. The test garden was planted in 1988 with a density of 3 × 4 meters. 3 Results Analysis of test varieties, respectively, using three different forms of plastic pruning. In 1993, a 6-year-old tree production survey was conducted for statistical analysis. Each of the three different varieties of tree points each draw four quadrats, each quadrat for 1 mu. Statistics are analyzed as follows: