论文部分内容阅读
为了充分利用盐碱土地,提高盐碱土地的产出率,试验采用3个密度水平,在轻度碱地对3个不同青贮玉米品种的青物质产量、干物质产量、粗蛋白、粗脂肪、中性洗涤纤维和酸性洗涤纤维含量进行了测定。结果表明:青物质产量、干物质产量、中性洗涤纤维和酸性洗涤纤维均随着密度的增加而增加,并未出现随着密度增加到一定程度而下降的趋势;而不同品种粗蛋白和粗脂肪含量随着密度升高的变化趋势不同,其中中原单32和龙巡32的粗蛋白和粗脂肪含量随着密度的增加而增加,而中北410粗蛋白和粗脂肪含量则随着密度的增加而降低。
In order to make full use of saline-alkali land and increase the yield of saline-alkali soil, three density levels were used to test the light matter yield, dry matter yield, crude protein, crude fat, Neutral detergent fiber and acid detergent fiber content were determined. The results showed that: the yield of green matter, dry matter yield, neutral detergent fiber and acidic detergent fiber increased with the increase of density, but did not appear to decrease with the increase of density; however, the crude protein and crude The variation of fat content with the increase of density was different. The content of crude protein and crude fat increased with the increase of density in Zhongyuan 32 and Longyao 32, while the content of crude protein and crude protein in 410 in North China increased with the increase of density Increase and decrease.