摘要：由甘肃省农业科学院主持编研的《甘肃农业改革开放研究报告》是甘肃农业科技绿皮书系列的2021年度成果。该书以甘肃农业改革开放进程中的重点、热点和难点问题为主要内容，包含总报告和“改革篇”“开放篇”“特色篇”3个专篇，共18篇研究报告。全书回溯了甘肃省农业农村改革开放的历程，系统研究了深化农村改革与扩大农业开放的全局性、关键性重大问题，提出了推动全省农业高质量发展的对策和建议。本文是对这部著作主要研究成果的概括介绍。

关键词：农业改革开放;高质量发展;乡村振兴;甘肃省

中图分类号：S-01       文献标志码：A       文章编号：1001-1463（2021）09-0077-07

doi：10.3969/j.issn.1001-1463.2021.09.015

Effects of Potassium Application Rate on yield andQuality Rate of

Potato in Upland Mountain

GUO Minjiang，LUO Zhaoxia， Lü Tai， WANG Peng， DOU Junhuan， GUO Tianshun，XIE Weiqing，LI Fangdi， QI Xiaodong

（Tianshui Institute of Agricultural Sciences，Tianshui Gansu 741000， China）

Abstract：Field experiments were set up to study the effects of different potassium application rate on the yield and quality of potato.The results showed that the yield of potato were all improved by the application of different potassium fertilizer，the commodity rate， yield， dry matter， starch of K2O 240 kg/hm2 treatment was the highest，but there was a downturn in reducing sugar， Vc and protein content. The commodity rate and yield of potato were respectively 80.56% and 24 910.71 kg/hm2， it was increased by 49.07% and 25.87% compared to the control without fertilization（CK）， it was increased by 28.61% and 17.67% compared to nitrogen and phosphate treatment. The dry matter， starch， reducing sugar，Vc and protein content were respectively 229.7 g/kg，173.6 g/kg， 3.6 g/kg， 211.1 mg/kg and 22.0 g/kg， it was increased by 18.34%， 18.18%， 16.13%， 11.58% and 16.40% compared to CK， it was increased by 9.75%， 14.14%， 9.09%， 8.09% and 11.68% compared to nitrogen and phosphate treatment. Comprehensive yield and quality showed that the suitable amount of potassium fertilizer for potato cultivation in the experimental area was K2O 240 kg/hm2.

Key words：Potassium fertilizer;Application level;Potato;Yield Quality;Utilization rate of fertilizer

改革开放以来，我国从稳定解决温饱问题到全面建成小康社会，“三农”发展取得了舉世瞩目的伟大成就，实现了历史性的转 变[1 - 7 ]。作为西部欠发达省份的甘肃省，农业农村的改革开放与全国同步推进，经过40多年的不懈奋斗，彻底改变了“苦甲天下”的旧貌，开启了陇原乡村振兴的新征程。回望甘肃农业和农村改革的历程与成就，客观分析当前农业发展面临的机遇与形势，厘清新时期全省农业发展思路，对推进新一轮西部大开发背景下改革开放、加快陇原乡村全面振兴、促进甘肃农业农村现代化具有重要意义。

1   甘肃省农业改革开放的成就

肇始于1978年实行的农村家庭联产承包责任制开启了甘肃省农业改革开放的大幕，全省从转变农业经营方式入手，坚持不懈改善农业生产基础条件，持……