江西农业大学学报
江西農業大學學報
강서농업대학학보
ACTA AGRICULTURAE UNIVERSITATIS JIANGXIENSIS
2014年
1期
44-49
,共6页
丁奇%吴建富%李涛%潘晓华%石庆华%赵新帆%吴玉成%杨小华
丁奇%吳建富%李濤%潘曉華%石慶華%趙新帆%吳玉成%楊小華
정기%오건부%리도%반효화%석경화%조신범%오옥성%양소화
稻草全量还田%水稻生长%土壤肥力%经济效益
稻草全量還田%水稻生長%土壤肥力%經濟效益
도초전량환전%수도생장%토양비력%경제효익
total rice straw incorporation%rice growth%soil fertility%economic benefits
通过设置不施肥、单施化肥、稻草烧灰还田+化肥和稻草全量还田+化肥4个处理的大田定位试验,在等量氮磷钾养分条件下,研究稻草全量还田对双季稻分蘖动态、产量、土壤理化性质以及经济效益的影响。结果表明:晚稻稻草还田有利于翌年早稻产量的提高,较单施化肥和烧灰还田处理相比,产量分别提高了8.6%和3.1%;而早稻草还田对晚稻的增产效果不明显。稻草连续多季直接还田有利于改善土壤的通气状况和提高土壤肥力以及提高生产收益。稻草全量还田不仅提高了水稻的产量,改善了土壤的通气孔隙度和提高了土壤养分含量,而且还减少了生产成本,提高了种粮的经济效益。
通過設置不施肥、單施化肥、稻草燒灰還田+化肥和稻草全量還田+化肥4箇處理的大田定位試驗,在等量氮燐鉀養分條件下,研究稻草全量還田對雙季稻分蘗動態、產量、土壤理化性質以及經濟效益的影響。結果錶明:晚稻稻草還田有利于翌年早稻產量的提高,較單施化肥和燒灰還田處理相比,產量分彆提高瞭8.6%和3.1%;而早稻草還田對晚稻的增產效果不明顯。稻草連續多季直接還田有利于改善土壤的通氣狀況和提高土壤肥力以及提高生產收益。稻草全量還田不僅提高瞭水稻的產量,改善瞭土壤的通氣孔隙度和提高瞭土壤養分含量,而且還減少瞭生產成本,提高瞭種糧的經濟效益。
통과설치불시비、단시화비、도초소회환전+화비화도초전량환전+화비4개처리적대전정위시험,재등량담린갑양분조건하,연구도초전량환전대쌍계도분얼동태、산량、토양이화성질이급경제효익적영향。결과표명:만도도초환전유리우익년조도산량적제고,교단시화비화소회환전처리상비,산량분별제고료8.6%화3.1%;이조도초환전대만도적증산효과불명현。도초련속다계직접환전유리우개선토양적통기상황화제고토양비력이급제고생산수익。도초전량환전불부제고료수도적산량,개선료토양적통기공극도화제고료토양양분함량,이차환감소료생산성본,제고료충량적경제효익。
A localization field experiment,designed with four treatments,i.e.CK,NPK,rice straw incinera-tion and chemical fertilizers ( SINPK) ,total rice straw incorporation and chemical fertilizers ( SNPK) ,was conducted to examine the effect of rice straw incorporation on the tiller dynamic of double cropping rice ,yield, chemical and physical properties of soil ,and economic efficiency under the conditions of equal nitrogen ,phos-phorus and potassium nutrients .The results showed that returning rice straw to field increased the next year ’ s early rice yield,and compared with that of NPK and SINPK treatments ,the production increased by 8.6%and 3.1%respectively ,while early returning rice straw to field had little impact on the yield increase of late rice .Consective multi-seasonal returing of rice straw directly to field was beneficial to the improvement of the condi -tions of soil aeration ,enhancement of soil fertility and production gain .The total rice straw incorporation not on-ly improved rice yield ,soil aeration porosity and soil nutrient content ,but also reduced the production cost and improved the economic benefit of production grain .