CAJ | 학술논문

在施肥按照全N 180 kg·hm-2、 K2 O 120 kg·hm-2、 P2 O5不低于90 kg·hm-2的条件下, 研究了有机与无机肥的不同比例配施对水稻生长、产量、土壤微生物数量和酶活性的影响. 结果表明, 当季有机无机肥中的氮素比例为3:7 (T3) 时, 其理论产量和实际产量都最大, 并显著高于其他处理, 相比全施化肥的处理 (T1), 其理论产量提高了27. 71%, 实际产量提高了14. 67%; 其微生物 (细菌、真菌和放线菌) 数量除了分蘖期的细菌和真菌外都显著高于其他处理; 其水稻成熟期的土壤过氧化氢酶活性、脲酶活性和蔗糖酶活性最大, 并显著高于其他处理. 因此, 在一定的施肥条件下, 有机无机肥的合理配施, 可以显著增加水稻的产量, 增加土壤微生物数量, 提高土壤酶活性, 达到培肥的目的.
재시비안조전N 180 kg·hm-2、 K2 O 120 kg·hm-2、 P2 O5불저우90 kg·hm-2적조건하, 연구료유궤여무궤비적불동비례배시대수도생장、 산량、 토양미생물수량화매활성적영향. 결과표명, 당계유궤무궤비중적담소비례위3:7 (T3) 시, 기이론산량화실제산량도최대, 병현저고우기타처리, 상비전시화비적처리 (T1), 기이론산량제고료27. 71%, 실제산량제고료14. 67%; 기미생물 (세균、 진균화방선균) 수량제료분얼기적세균화진균외도현저고우기타처리; 기수도성숙기적토양과양화경매활성、 뇨매활성화자당매활성최대, 병현저고우기타처리. 인차, 재일정적시비조건하, 유궤무궤비적합리배시, 가이현저증가수도적산량, 증가토양미생물수량, 제고토양매활성, 체도배비적목적.
The effects of the different proportions of manure and chemical fertilizer on rice growth, yield, soil microorganism quantity and soil enzyme activity was studied with N 180 kg·hm-2 , K2 O 120 kg·hm-2 , not less than P2 O5 90 kg·hm-2 . The results showed that for the combined application of manure and chemical fertilizer according to the proportion of nitrogen of 3:7 (T3), the theoretical and practical yield were the maximum and significantly higher than other treatments, compared with the chemical fertilizer treatment ( T1 ) , the theoretical and practical yield increased by 27. 71% and 14. 67% respectively. The amounts of microorganisms ( bacteria, fungi and actinomycetes ) were significantly higher than other treatments except bacteria and fungi in tillering stage. The soil catalase enzyme activity, urinary enzyme activity and invertase activity were maxi-mum in rice mature period, and significantly higher than other treatments. Therefore, with certain rate of fertilization, appro-priate combined application of manure and chemical fertilizer could significantly increase rice yield, improve soil microorganism quantity and soil enzyme activities, to increase soil fertility.