在黑钙土上磷酸二铵最佳施用量试验报告

Comparison Experiment of Growth and Development and Output Performance Between Quality Fine Wool and Chinese Merino Sheep

摘要:

在多年连续施用磷酸二铵的黑钙土上进行了将磷酸二铵施用量由200 kg/hm²逐渐减少到0的田间试验。结果表明:施用量减少到原施用量的45%时为磷酸二铵最佳施用量。既降低了成本,又不减产。但不施磷酸二铵玉米会显著减产。

Abstract:

A comparation experiment between quality fine wool and Chinese Merino Sheep was carried out under the same phase, ages and feeding condition preliminary results show that Chinese Merino is more outstanding in growth and development, output, length and growth of wool trait, and characterized as a strong wool-type breed.The quality fine wool sheep is more outstanding in wool quality trait, especially in wool fineness, arranging from 66 to 80 yarn count, which is one grade higher than the fineness of Chinese Merino wool, and characterizer tipically as a fine-wool type Merino breed.