CAJ | 학술논문

利川市高山蔬菜基地面积大,常年种植面积在2.67万hm2左右,但耕地酸化严重,根肿病发病率高.为此,利川市土肥站从2010年起,连续3 a在齐岳山蔬菜基地的石庙子和天上坪两村进行了石灰应用示范,并对示范效果进行调查和土样检测,证明在甘蓝上施用石灰增产效果极显著,当年667 m2增收近600元,净增产值400余元,增产幅度达14.3%;而根肿病发病率可降低13.26%,与增产幅度基本一致;而3 a连续667 m2施用石灰150~200 kg,可使土壤pH值提高1个单位左右,表明石灰是中和耕地酸性,提高土壤pH值,治理耕地酸化的良好材料.
리천시고산소채기지면적대,상년충식면적재2.67만hm2좌우,단경지산화엄중,근종병발병솔고.위차,리천시토비참종2010년기,련속3 a재제악산소채기지적석묘자화천상평량촌진행료석회응용시범,병대시범효과진행조사화토양검측,증명재감람상시용석회증산효과겁현저,당년667 m2증수근600원,정증산치400여원,증산폭도체14.3%;이근종병발병솔가강저13.26%,여증산폭도기본일치;이3 a련속667 m2시용석회150~200 kg,가사토양pH치제고1개단위좌우,표명석회시중화경지산성,제고토양pH치,치리경지산화적량호재료.
Perennial planting area of alpine vegetables was about 26 700 hectares in Lichuan city, but the farmlands were acidulated seriously and the incidence rate of clubroot was very high. Lichuan Soil and Fertilizer Workstation had carried out the lime application demonstration test in the two villages Shimiaozi and Tianshangping of Jiyueshan vegetable base since 2010, and investigated the demonstration effect and tested the soil samples. The results showed that liming could increase the cabbage yield significantly, and the increase income and net increase income were 600 Yuan/667 m2 and 400 Yuan/667 m2 in 2010 respectively. The yield increasing rate was 14.3% and the incidence rate of clubroot was decreased by 13.26% in 2010. And the soil pH value could be increased by one unit after continuous liming for three years with the application amount of 150-200 kg/667 m2, indicating lime was an excellent material for increasing the pH value of soil and controlling the acidification of farmlands.