CAJ | 학술논문

在田间试验条件下，研究了在新砂田压砂瓜生育期内，单作（T1）、间作（T2）、覆膜单作（T3）不同种植模式对土壤养分和土壤酶活性的影响。结果表明：（1）三种种植模式下土壤养分含量以 T3处理最高，其次是 T2和T1；土壤有机质变化规律为“高-低-高-低”双峰模式，其余养分变化相似，呈“高-低-高”单峰模式。（2）三种种植模式下土壤酶活性的变化均呈现出一定的规律性；不同种植模式下土壤酶活性存在显著差异，其中 T3处理土壤酶活性最高，T2处理次之，T1处理最低。（3）在各生育时期，土壤酶活性与各土壤养分存在显著或极显著相关关系。（4）三种种植模式下，西瓜产量高低为 T3＞ T2＞ T1。
재전간시험조건하，연구료재신사전압사과생육기내，단작（T1）、간작（T2）、복막단작（T3）불동충식모식대토양양분화토양매활성적영향。결과표명：（1）삼충충식모식하토양양분함량이 T3처리최고，기차시 T2화T1；토양유궤질변화규률위“고-저-고-저”쌍봉모식，기여양분변화상사，정“고-저-고”단봉모식。（2）삼충충식모식하토양매활성적변화균정현출일정적규률성；불동충식모식하토양매활성존재현저차이，기중 T3처리토양매활성최고，T2처리차지，T1처리최저。（3）재각생육시기，토양매활성여각토양양분존재현저혹겁현저상관관계。（4）삼충충식모식하，서과산량고저위 T3＞ T2＞ T1。
Under the field conditions ,we studied the contents of soil nutrients and soil enzyme activities at different growth stage of the new gravel-sand mulched field watermelon ,with three treatments of monoculture (T1) ,intercropping (T2) ,and monoculture with plastic film mulching (T3) .The results showed that the contents of soil nutrients in this three cropping patterns of T3 were highest ,followed by T2 and T1 for the whole growth period of watermelon .Soil organic matter showed a bimodal pattern of high - low - high - low ,and the same for other soil nutrients .Soil enzyme activities were highest for T3 ,medium for T2 ,and lowest for T1 .Significantly positive correlation between soil enzyme activities and soil nutrients was detected .Watermelon yield followed the order of T3>T2>T1 .Results obtained are helpful for wa-termelon production through gravel-sand mulching .