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河北平山土石山区片麻岩及花岗岩山地土壤土层瘠薄,土壤保水能力差,且灌溉困难。水、肥的严重匮乏是该地区植被恢复的限制性因子。与化肥相比,施用3种新型肥料(生物有机肥、缓释复混肥、微生物菌剂),均能显著提高土壤全氮、全钾、有机质、碱解氮、速效钾含量。尤以生物有机肥2000g/穴处理施用效果最好,土壤全磷、全钾、有机质、碱解氮和速效磷较CK分别提高了444%、87%、906%、355%、1131%,土壤养分均得到最大程度的改善。因此,平山地区可以利用有机肥提高土壤肥力以促进植物生长,加速植被恢复的速度。
Gypsum mountainous area in Hebei Pingshan granite mountainous soil and barren soil, poor water retention capacity, and irrigation difficulties. The severe shortage of water and fertilizers is a limiting factor for the restoration of vegetation in the area. Compared with chemical fertilizers, application of three kinds of new fertilizers (bio-organic fertilizer, slow-release compound fertilizer, microbial agents) can significantly increase soil total nitrogen, total potassium, organic matter, available nitrogen, available potassium content. In particular, application of bio-organic fertilizer at 2000g / acupressure had the best effect. Soil total phosphorus, total potassium, organic matter, available nitrogen and available phosphorus were increased by 444%, 87%, 906%, 355% and 1131% Nutrients have been the greatest improvement. Therefore, Pingshan can use organic fertilizers to improve soil fertility in order to promote plant growth and speed up the recovery of vegetation.