ZHANG Dong-tie,TANG Feng-lan,ZHU Rui-fen,et al.Effect of Seeding Rate,Fertilizer Stage and Fertilizer Quantityon the Yield of Alfalfa on Saline-Alkali Soil[J].HEILONGJIANG AGRICULTURAL SCIENCES,2011,(12):116-119.
盐碱地苜蓿播量、施肥期和施肥量对其产量的影响
- Title:
- Effect of Seeding Rate,Fertilizer Stage and Fertilizer Quantityon the Yield of Alfalfa on Saline-Alkali Soil
- 文章编号:
- 1002-2767（2011）12-0116-04
- 分类号:
- S551+.7
- 文献标志码:
- A
- 摘要:
- 为在盐碱地条件下，使牧草获得高产，并永续持久利用，以肇东苜蓿为供试材料，在黑龙江省兰西县盐碱土壤条件下进行苜蓿播量及施肥期和施肥量正交试验。结果表明：以播量21.05 kg·hm-2处理下三茬次鲜产达到最高80 899.2 kg·hm-2。营养期不施肥刈割后施肥为好，以施氮337.5 kg·hm-2、磷675.0 kg·hm-2产量最大，为15 1476.7 kg·hm-2。因此在碱地苜蓿栽培最优方案为：组合7处理即A2（播量21.05 kg·hm-2）+B3（营养期不施肥刈割后施肥）+C3（施氮337.5 kg·hm-2，磷675.0 kg·hm-2）组合下产量最高，为52 926.75 kg·hm-2，极显著高于其它处理。三因素对产草量的贡献率为播量＞施肥量＞施肥期。
- Abstract:
- In order to obtain high yield of alfalfa on saline-alkali soil,the effect of seeding rate,fertilizer stage and fertilizer quantity on alfalfa yield was studied on saline-alkali soil with orthogonal design.The results showed that alfalfa yield with seeding rate of 21.05 kg·hm-2was the highest and the hay yield was 80 899.2 kg?hm-2;Vegetative period don，t to apply fertilizers and do it after cradle(B3)had the best effect;the effect of applying N337.5 kg·hm-2P675 kg·hm-2 was the highest,it was 151 476.7 kg·hm-2;So the treatment of seven reached the highest yield of 52 926.75 kg·hm-2,which was significantly higher than other treatments.The contributron rate of the three factors to yield was seeding rate＞fertilizer amount＞fertilization period.
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备注/Memo
第一作者简介： 张东铁（1963-），男，黑龙江省绥化市人，学士，助理研究员，从事土壤环境与土壤检测研究。E-mail:meixinkeji@163.com。