CAJ | 학술논문

山东省属马铃薯中原二季作地区，产量和效益居全国首位。为了实现合理的养分管理和马铃薯生产的高产、高效，调查了山东省马铃薯主产区的土壤营养状况，在施肥与不施肥条件下分析了肥料利用效率和增产效果。结果表明：在长期大量施肥的情况下，马铃薯主产区的土壤肥力以滕州最高，造成该地区施肥增产只有5％左右，抵消肥料投入后与不施肥相比较666．7m2收入反而减少187元，威海与肥城施肥增产20％以上，抵消肥料投入后与不施肥相比较666．7m2收入增加400～500元。总体来看，山东省马铃薯主产区施肥过量，肥料利用率低，而且导致土壤和水资源富营养化。所以在马铃薯生产中，应加强肥水管理，进行科学施肥。
산동성속마령서중원이계작지구，산량화효익거전국수위。위료실현합리적양분관리화마령서생산적고산、고효，조사료산동성마령서주산구적토양영양상황，재시비여불시비조건하분석료비료이용효솔화증산효과。결과표명：재장기대량시비적정황하，마령서주산구적토양비력이등주최고，조성해지구시비증산지유5％좌우，저소비료투입후여불시비상비교666．7m2수입반이감소187원，위해여비성시비증산20％이상，저소비료투입후여불시비상비교666．7m2수입증가400～500원。총체래간，산동성마령서주산구시비과량，비료이용솔저，이차도치토양화수자원부영양화。소이재마령서생산중，응가강비수관리，진행과학시비。
Shandong Province is the two-cropping area of potato in the Central Plain, and its yield and benefit rank the first in China.In order to realize reasonable nutrient management, high yield and high benefit of potato production, the soil nutrient status of main potato producing areas in Shandong Province was investi-gated.The fertilizer use efficiency and its yield increasing effect were also analyzed under the conditions of fer-tilization and no fertilization.The results showed that under the condition of long-term fertilization with large amount, Tengzhou had the highest soil fertility, which resulted in only about 5%yield increase but 187 yuan per 666.7m2 decrease of net benefit compared to no fertilization;in Weihai and Feicheng, the potato yield in-creased by more than 20%by fertilization, and the net benefit could increase by 400~500 yuan.Overall, ex-cessive fertilizers were applied in the major potato producing areas of Shandong Province, which resulted in low use efficiency of fertilizer and eutrophication of soil and water.So the fertilizer and water management should be strengthened for scientific fertilization during potato production.