氮肥施用技术对小黑麦产量及饲用品质的影响

为获得小黑麦最大产量和较好饲用品质的氮肥施用技术,设5种不同施氮技术,研究不同氮肥用量和氮肥种类对东饲小黑麦1号饲草产量和品质的影响。结果表明,在试验处理的氮水平内,随施入速效氮肥量的增加小黑麦产量增加,品质提高;N4处理(氮肥为缓释肥,施氮量150 kg·hm-2)和N5处理(氮肥为尿素,施氮量100 kg·hm-2,有机肥200 kg·hm-2),全年获得最大产量,二者产量无显著差异,但N5处理小黑麦品质优于N4处理。因此,缓释氮肥和有机肥对提高小黑麦产量和品质的效果均较为理想。

Effect of nitrogen fertilization technology on yield and quality of Triticale rim pau

Nitrogen fertilization technology for maximum yield and better feeding quality was determined through comparative study of the yield and feeding quality of Triticale rimpau under different nitrogen fertilization in this experiment.Five different nitrogen application technologies were set and the effect of nitrogen rates and nitrogen forms on forage yield and feeding quality of Triticale rimpau of Dongsi 1 were studied.Results showed that within the nitrogen levels of the experiment treatments,the yield increased and the quality improved with nitrogen rates increasing.The yields of N4 treatment(slow release nitrogen fertilizer by the rate of 150 kg·hm-2) and N5 treatment(100 kg·hm-2urea and 200 kg·hm-2organic fertilizer) were the best,and no significant difference between them,but the quality of N5 was better than that of N4.In conclusion,slow release nitrogen fertilizer and organic fertilizer were relatively ideal fertilizers to promote Triticale rimpau yield and feeding quality.