摘要
在青海省海西州德令哈市尕海镇盐碱地上对沙打旺进行了引种栽培试验,结果表明:沙打旺只能进行营养生长,不能完成整个生育期;随着生长年限的增长,越冬率、盖度也在逐年增加,种植第3年越冬率、盖度分别达到88. 0%,94. 5%;株高和地上植物量均随着生长年限的增长,先增高后降低。种植第3年达到高峰期,株高和地上植物量分别为85. 4㎝,9747. 5kg/hm2;沙打旺表现出了较强的抗旱、耐寒、耐盐碱、耐瘠薄、抗风沙、适应性强的特点,是适合柴达木盆地中、轻度盐碱地改良与重建的优良草种。该地区沙打旺人工草地种植的最佳农艺措施是:翻耕→冬灌→翻耕→耙磨→施肥→播种(覆膜播种机一次性完成覆膜、播种和覆土)→冬灌。
The introduction test of Astragalus adsurgens on salt-alkali land in Garhai town,Haixi prefecture,Qinghai province was implemented. The results showed that Astragalus adsurgens can only complete the nutrition growth,cannot complete the entire growth period. With the increasing of growth years,the overwintering rate and coverage increased year by year. The overwintering rate and coverage in the third year of planting reached 88. 0% and 94.5% respectively. Plant height and aboveground plant quantity first increased and then decreased with the increasing of growth years,and reach the peak in third year,the plant height and the ground plants were 85. 4 ㎝,9747. 5 kg/hm2 respectively. Astragalus adsurgens shows strong characteristics of drought-resistance,cold-resistance,salt-alkali-resistance,barren-resistance,wind-sand resistance and strong adaptability on saline-alkali. It is an excellent grass species suitable for improvement and reconstruction on mild salt-alkali land in Qaidam basin. The best agronomic measures for the cultivation of Astragalus adsurgens artificial grassland in this area are,tillage,winter irrigation,tillage,rake grinding,fertilization,sowing( the mulch seeder completes the mulch,seeding and covering soil at one time),winter irrigation.
作者
王彦龙
杨晓霞
李世雄
王晓丽
马玉寿
WANG Yan-long(Academy of Animal Sciences and Veterinary Medicine of Qinghai University,Xining 810016)
出处
《青海畜牧兽医杂志》
2018年第6期31-33,共3页
Chinese Qinghai Journal of Animal and Veterinary Sciences
基金
国家重点研发计划课题"高寒荒漠草原区高效节水灌溉技术研究与集成应用"(2016YFC040030402)
青海省科技厅重大专项"盐碱地牧草种植技术集成示范"(2014-NK-A4-5)
关键词
柴达木盆地
盐碱地
沙打旺
引种
适应性评价
Qaidam basin
Saline-alkali land
Astragalus adsurgens
Introduction
Adaptability evaluation
