不同播种量对一年生黑麦草生产性能的影响

Effect of Different Sowing Quantity on Annual Rye Grass Production Characters

该试验研究了不同播种量对一年生黑麦草产草量、植株性状、生长速度、单位重量的干草产量等生产性能的影响,结果表明:播种量每小区70g时,产量最高为3226.83kg/666.7m2。单株叶片数、单株鲜重、单株干重、株高、单株分蘖数之间差异达到显著水平。茎叶比、风干率等性状随密度增加比值加大,拔节期前处理C4生长速度最快,为适宜播种量,可在生产中推广利用。

Researching the effect of different sowing quantity on grass yield, plant characters, growing speed, hay yield of annual Rye grass, the results showed that when sowing quantity was 70g/36m^2, the grass yield up to 3226.83 tillering that the kg/666.7m^2 .Among single leaf number, single fresh grass weight, single hay weight, plant height and single number, the difference was remarkable, and before jointing stage, growing speed was fastest.This indicate treatment C4 is the adaptive sowing quantity and may be spreaded in production.