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作者	单位
董县中, 贺德先, 吴寅	（1.河南省南召县农业技术推广中心，河南南召 474650 2.河南农业大学农学院，河南郑州 450002）

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中文摘要:

为给豫西南浅山丘陵区小麦测土配方施肥技术的推广应用提供参考，以豫西南盆地的典型浅山丘陵区河南南召县为代表，通过对小麦肥料效应和耕地地力等进行系统研究与分析，建立了施肥技术指标体系，并制定出区域肥料配方和提出施肥建议。结果表明，该区麦田土壤全氮含量极低、低、中、高指标分别为＜0.65、0.65~0.94、0.94~1.34、＞1.34 g·kg^-1，有效磷含量分别为＜10、10~16、16~24、＞24 mg·kg^-1，速效钾含量分别为＜49、49~66、66~89、＞89 mg·kg^-1，不同肥力水平下N、P₂O₅、K₂O推荐施肥量分别为120~225、 0~120、0~135 kg·hm^-2；根据丘陵旱作区、山前平原区和水旱轮作区土壤养分供应特点及小麦需肥规律，3个种植生态区一次性施肥方案的肥料配方(N-P₂O₅-K₂O)分别为45% (27-8-10)、40% (25-6-9)、35% (22-5-8)；基肥与追肥相结合方案的通用基肥配方为40%（15-10-15），3个种植生态区基肥施用量分别为450~600、420~540、360~480 kg·hm^-2，在小麦起身至拔节期结合雨水或灌水分别再追施尿素200~260、180~240、150~210 kg·hm^-2。

英文摘要:

In order to promote the utilization of soil testing for formulated fertilization techniques on wheat production and guide farmers for scientific fertilization, the sufficient and deficient indices for soil nutrients of wheat fields are proposed for the typical hilly area of the basin-Nanzhao county of Henan province. The fertilizer effect on wheat and cultivated land fertility were studied, the fertilization technology recommended for wheat production were established. The results indicated that the indices of sufficiency and deficiency of the contents of soil nutrients were as extremely low, low, medium and sufficient for soil total nitrogen, available phosphorus, and available potassium were as <0.65, 0.65~0.94 , 0.94~1.34 and >1.34 g·kg^-1，<10, 10~16, 16~24 and >24 mg·kg^-1，and <49, 49~66, 66~89 and >89 mg·kg^-1, respectively. The results showed the recommended application rates for fertilizers N, P₂O₅, and K₂O under different soil fertility levels were 120~225, 0~120, and 0~135 kg·hm^-2, respectively. Based on the characteristics of soil nutrients, fertilizer requirement of wheat in hilly and dry farming areas, piedmont valleys, and areas with a dry-paddy cropping system, three kinds of fertilizer formulae for the above 3 wheat-growing areas were proposed. When the fertilization was a single application during the whole growing period, fertilization regime (N-P₂O₅-K₂O) of 45% (27-8-10), 40% (25-6-9) and 35% (22-5-8) were recommended, respectively. Fertilization regime (N-P₂O₅-K₂O) was 40%（15-10-15）was proposed for base and dressing application of fertilizers. The recommended application rates for base fertilizers were 450~600, 420~540 and 360~480 kg·hm^-2 and top-dressing at jointing stage with urea of 200~260, 180~240 and 150~210 kg·hm^-2.

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