The invention discloses a fertilizing method for highland barley slow / controlled release nitrogen fertilizer, which belongs to the application field of controlled release fertilizer. Slow/controlled-release nitrogen fertilizer with controlled-release period of 2.5-3.5 months was selected. Among them, the amount of slow/controlled-release nitrogen fertilizer was converted into pure nutrient nitrogen 105-180 kg/hm2, which was applied in one-time at the time of barley seeding. The depth of slow/controlled-release nitrogen fertilizer was 10-15 cm, and the horizontal distance between slow/controlled-release nitrogen fertilizer and barley seeds was 0-10 cm, and 0 cm, respectively. It's below the highland barley seed. Considering the length of controlled release period of fertilizer, the depth of fertilization, the distance between fertilizer and seed, the amount of fertilizer and the time of fertilization, this technical scheme can achieve the goal of rational and efficient fertilization in highland barley production. It can not only effectively improve the utilization rate of slow/controlled release nitrogen fertilizer, increase the yield of highland barley, but also effectively control the loss rate of nitrogen and promote high fertilization. The original agricultural ecological environment is sustainable and healthy development.
【技术实现步骤摘要】
一种青稞缓/控释氮肥的施肥方法
本专利技术涉及一种缓/控释肥的施肥方法,尤其涉及一种青稞缓/控释氮肥的施肥方法,属于控释肥应用
技术介绍
青稞(HordeumvulgareL.var.nudumHook.f)是禾本科大麦属的一种禾谷类作物,又称裸大麦、元麦、米大麦,主要产自西藏、青海、四川、云南等海拔1000m~4500m的高寒地带。青稞作为西藏地区的主要粮食作物,其营养丰富,深加工潜力大,是多种食品、保健品和酒类以及其它一些工业用品生产的重要原材料。在西藏大力发展青稞种植,延伸青稞产业链,不仅能满足藏民族生活需要,而且能解决剩余劳动力的就业问题,在增加农牧民收入的同时,也提高了当地农牧业的综合生产能力,还能促进西藏农牧业实现跨越式发展,维护民族团结和社会稳定。因此,为满足上述目的,有必要研究当地青稞种植合理优化的施肥制度,有效地利用和节约施肥成本,解决化肥利用率低下等问题,大力提高青稞种植的产量和效益。西藏全区土地面积120万多平方公里,平均海拔4200m,光照时间长,辐射强度大,年日照时数多为3000~3400h,太阳辐射年总量190~200千卡/cm2,远超过我国东部地区,强烈光照和太阳辐射对作物生物能的形成和转化提供了良好的条件,为作物高产提供了优良的自然条件。虽然,西藏的作物种植效率优势指数在全国最高,但西藏作物的平均产量却较低,除耕作及管理因素外,主要是土壤肥力水平较低,其成为制约作物产量的瓶颈。在西藏地区,土壤肥力对粮食生产的决定作用达到70%以上,肥力因素严重影响着作物优良品种资源、光照、水及温度等潜力的发挥。青稞是西藏地区栽培面 ...
【技术保护点】
1.一种青稞缓/控释氮肥的施肥方法,其特征在于:选用控释期为2.5~3.5个月的缓/控释氮肥,其中,缓/控释氮肥的施肥量折合成纯养分氮素105~180kg/hm2,在青稞播种时全部一次性施用;缓/控释氮肥的施肥深度为10~15cm,其中,缓/控释氮肥与青稞种子的水平距离为 0~10cm,0 cm是指在青稞种子的正下方。
【技术特征摘要】
1.一种青稞缓/控释氮肥的施肥方法,其特征在于:选用控释期为2.5~3.5个月的缓/控释氮肥,其中,缓/控释氮肥的施肥量折合成纯养分氮素105~180kg/hm2,在青稞播种时全部一次性施用;缓/控释氮肥的施肥深度为10~15cm,其中,缓/控释氮肥与青稞种子的水平距离为0~10cm,0cm是指在青稞种子的正下方。2.根据权利要求1所述的施肥方法,其特征在于:所述缓/控释氮肥的控释期为2.5~3.0个月,施肥量折合成纯养分氮素120~150kg/hm2。3.根据权利要求1所述的施肥方法,其特征在于:所述缓/控释氮肥的施肥...
【专利技术属性】
技术研发人员:邱城,刘青海,张飞龙,达娃,吴雪莲,张唐伟,
申请(专利权)人:西藏自治区农牧科学院农业质量标准与检测研究所,
类型:发明
国别省市:西藏,54
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