摘要
在盆栽条件下,研究硼对红三叶草产量及品质的影响表明,红三叶对硼的反应与温度和收割次数有关.施硼可提高红三叶草的粗蛋白质和粗纤维含量,降低粗脂肪含量,面对灰分和无氮浸出物影响不大.明显的缺硼和高硼都会使红三叶的产量降低.
The influence of boron on the yields and quality of red clover was studied under soil culture condition. Boron levels were 0.13、0.25、0.50、0.75、1.00、2.50 and 5. 00pmm. Herbage yields in five cuts and seed yield before the fourth cut were low at low boron levels (0.13 and 0. 25ppm) and extreme high level (5.0ppm). Among the other boron levels, herbage yields did not vary significantly. The response of red clover to boron was related to the temperature and the number of cuts. Boron application increased the contents of crud protein and crud fibre, decreased the content of crud fat and didnot affect the contents of crud ashand nitrogen — free extract. The symptoms of boron deficiency and toxicity were described.
出处
《中国草地》
CSCD
1993年第6期49-51,共3页
Grassland of China
关键词
硼
红三叶草
产量
品质
Boron
Red clover
Yield
Quality
