Stuies on the Effect of Compost and Fresh Rice Straw on Paddy yield

수도생육에 있어서 퇴비 생집 시용 효과시험

In order to obtain an idea on the cause of beneficial effect of organic matter, compost and fresh rice straw, in paddy production, a number of previous experimental results were reviewed. The results are as follows: 1. As a soil ameriolater, compost give a beneficial effect, in well drained and somewhat permeable soils but in ill drained and none permeable paddy field the effect is not observed. 2. The effect of fresh rice straw, is expected to be positive with less than compost limitation to the soil conditions. The reason for this benefical effect of fresh rice straw to paddy yield is evidenced to be of depressing effect of early stages of paddy growth which reserves plant nutrients in soil for later use. 3. Several problems in connection with the use of fresh rice straw in rice production is also discussed.

벼생육기간에 있어서 논토양에 시용된 퇴비 생집 등의 유기물 효과를 밝히기 위하여 시험했든 기존성적들을 요약하면 다음과 같다. 1. 토양개량제의 면에서 배수가 양호한 토양에서는 퇴비의 효과가 인정되었고 습답이나 배수불량한 논토양에서의 효과는 보지 못했다. 2. 생집의 효과는 토양조건에 따라 퇴비의 효과보다 한정되어 있으며 생집은 초기 벼생육을 억제하고 후기양분 보존 면에서 효과가 있었다. 3. 생집시용시의 수종문제점도 역시 논의되었다.