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为了研究控失肥作为基肥在滴灌施肥灌溉马铃薯上的应用效果，通过田间试验，选用克新 1 号（薯块早膨大型）和夏波蒂（薯块晚膨大型）2 个不同薯块膨大型品种，以复合肥作为基肥为对照，于 2012–2013 年研究了控失肥作为基肥对滴灌施肥灌溉马铃薯生长、产量和品质等的影响。结果表明，滴灌施肥灌溉条件下，当滴头正下方 20 cm 深度处的土壤水基质势低于-25 k Pa 时进行施肥灌溉，与复合肥作为基肥相比，控失肥作为基肥时改善了根区土壤水分状况，促进了块茎膨大初期马铃薯地上部的生长，克新 1 号的株高和鲜生物量分别提高了 4.9%~5.1%和 2.3%~9.9%，夏波蒂的叶面积指数和鲜生物量分别提高了 32.7%和 45.1%。同时，控失肥作为基肥时有利于克新 1 号这类薯块早膨大型品种块茎膨大后期的块茎膨大，单薯质量提高了 2.8%~6.4%，大薯率提高了 3.4%~4.5%，增产 6.8%~13.1%，并且商品薯率提高了 0.7%~2.5%。然而，控失肥作为基肥时却不利于夏波蒂这类薯块晚膨大型品种块茎膨大后期块茎的快速膨大，单薯质量下降了9.5%~15.1%，最终总产量和商品薯产量分别降低了 7.5%~14.1%和 5.7%~8.6%。滴灌施肥灌溉时，对于薯块早膨大型马铃薯品种，如克新 1 号，建议采用控失肥作为基肥，而对于薯块晚膨大型马铃薯品种，如夏波蒂，不建议将控失肥作为基肥。
In order to study the application of controlled-loss fertilizer as basal fertilizer in drip irrigation and fertilization of irrigated potatoes, two different tuberous tubers were swollen by using field trials of Kexin 1 (early enlargement of tuberous tubers) and Xiaototi (late swelling of tuberous tubers) Type of compound fertilizer as the base fertilizer as a control in 2012-2013 studied the controlled loss of fertilizer as a base fertilizer on drip irrigation potato growth, yield and quality effects. The results showed that under the conditions of drip irrigation and fertigation, fertigation was applied when the soil water matrix potential at the depth of 20 cm just below the dripper was lower than -25 kPa. Compared with the compound fertilizer as the basal fertilizer, The soil moisture in the root zone promoted the growth of above-ground potatoes in the initial stage of tuber expansion. The plant height and fresh biomass increased by 4.9% -5.1% and 2.3% -9.9%, respectively. The leaf area index And fresh biomass increased by 32.7% and 45.1% respectively. At the same time, the controlled loss of fertilizer as a base fertilizer is conducive to Kesxin 1, such large tuber early expansion of tuber bulking tubers swollen late, the quality of single potato increased by 2.8% to 6.4%, the bulk rate increased by 3.4% to 4.5% , An increase of 6.8% ~ 13.1%, and the potato yield increased by 0.7% ~ 2.5%. However, as a base fertilizer, it was not conducive to the rapid expansion of tubers in tuber bulky late-blooming varieties such as Xia Piti. The quality of single potato decreased by 9.5% -15.1%, and the final total output and commercial potato production decreased respectively 7.5% ~ 14.1% and 5.7% ~ 8.6%. In the case of drip irrigation, large-sized potato varieties such as Kexin 1 are recommended to use HSL as basal fertilizer, whereas for late tuberous potato varieties such as Xiaototi, it is not recommended to use HSL as base fertilizer.