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当前位置: 首页 > 文章 > 种植密度、刈割高度和刈割频度对百脉根产草性能的影响 草业科学 1992 (3) 37-40
Position: Home > Articles > EFFECTS OF PLANTING DENSITY, CUTTING HEIGHT AND FREQUENCY ON HERBAGE PRODUCTIVITY OF BIRDSFOOT TREFOIL Pratacultural Science 1992 (3) 37-40

种植密度、刈割高度和刈割频度对百脉根产草性能的影响

作  者：
沈益新;梁祖铎;王槐三;陈志飞
单  位：
南京农业大学畜牧系
关键词：
百脉根;产草性能;种植密度;刈割高度;刈割频度
摘  要：
田间试验研究了不同种植密度、刈割高度和刈割频度对百脉根(品种里奥)产草性能的影响。结果表明:20、40和60株/m~2三种种植密度春播当年产草量随种植密度提高而提高,秋播翌年、春播次年起产草量及其构成因素种植密度间无显著差异,鲜草干物质产量均在10000kg/ha以上;刈割高度1、5和IOcm或1～3和5～7cm,高刈割的再生显著优于低刈割,但刈割高度对年产草量无显著影响;初花始刈后连续间隔45、30和20或50、30和15天刈割或春季首刈后连续间隔8、6和4周刈割,产草量、粗蛋白质产量和抗旱耐热性随刈割频度提高而显著降低。
译  名：
EFFECTS OF PLANTING DENSITY, CUTTING HEIGHT AND FREQUENCY ON HERBAGE PRODUCTIVITY OF BIRDSFOOT TREFOIL
作  者：
Shen Yixin, Liang Zuduo, Wang Huaisan and Chen Zhifei (Department of Animal Science, Nanjing Agricultural University, Nanjing, 210014)
关键词：
: Lotus corniculatus; herbage productivity; planting density; cutting height; cutting frequency
摘  要：
Effects of planting density, cutting height and cutting frequency on herbage productivity of birdsfoot trefoil(Lotus corniculatus L. cv. Leo) was studied in field trials. The results showed that: 1) for spring sown crop, the herbage dry matter(DM)yield was increased by increasing planting density among 20, 40 and 60 plants/m~2 in the first year, but in the second year there were no significant difference in the herbage DM yield and yield components among the three densities for the autumn sown crops during the three years; 2) the regrowth from higher cutting treatment was significantly superior to the lower treatments among the cutting heights of 1,5 and 10 cm or 1-3 and 5-7 cm, but no significant effects on total annual herbage DM yield and its components were obtained; 3) the herbage DM yield, crude protein yield and drought and heat tolerence decreased by increasing cutting frequency in the intervals of 45, 30 and 20 days or 50, 30 and 15 days or 8, 6 and 4 weeks after first cut in Spring.

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