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[b][font='微软雅黑',sans-serif][color=black]其一,能协调土壤水分和空气的矛盾。[/color][/font][/b][font='微软雅黑',sans-serif][color=black]由于团粒间存在大孔隙,团粒内又有毛细管孔隙,这就有利于水分、养分、空气三者间的同时存在。从而土壤水、肥、气、热状况协调。[/color][/font][b][font='微软雅黑',sans-serif][color=black]其二,具有良好的养分状况。[/color][/font][/b][font='微软雅黑',sans-serif][color=black]随着水、气矛盾的解决,也解决了水分与养分的矛盾。因团粒表面常为好气分解,团粒内部又为嫌气分解,前者有利于土壤养分释放给作物吸收,后者有利土壤腐殖质累积,养分保蓄。矛盾协调后的水分与养分就能同时而不断地供给作物需要。[/color][/font][b][font='微软雅黑',sans-serif][color=black]其三,使土壤松软适度。[/color][/font][/b][font='微软雅黑',sans-serif][color=black]具有团粒结构的土壤,疏松多孔,犁耕阻力小,耕作省力,耕翻质量好;土壤细碎而均匀,既不紧硬,又不起浆浮泥;干燥不开大坼,泡田渗漏损失也小。[/color][/font]
[font=仿宋][size=21px]精耕细作、增施有机肥[/size][/font][font=仿宋][size=21px]。[/size][/font][font=仿宋][size=21px]精耕细作使表皮土壤松散,虽然形成的团粒是水不稳性的,但也会起到调节土壤孔性的作用。连续施用有机肥料,可促进水稳定性团聚体的形成,并且团粒的团聚程度较高,各种孔隙分布合理,土壤肥料得以保持和提高。[/size][/font][font=仿宋][size=21px]合理轮作倒茬[/size][/font][font=仿宋][size=21px]。[/size][/font][font=仿宋][size=21px]一年生或多年生[/size][/font][url=https://www.baidu.com/s?wd=%E7%A6%BE%E6%9C%AC%E7%A7%91%E7%89%A7%E8%8D%89&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]禾本科牧草[/size][/font][/url][font=仿宋][size=21px]或豆科作物,生长健壮,根系发达,都能促进土壤团粒的形成。[/size][/font][url=https://www.baidu.com/s?wd=%E7%A7%B8%E7%A7%86%E8%BF%98%E7%94%B0&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]秸秆还田[/size][/font][/url][font=仿宋][size=21px]、种植绿肥、粮食作物与绿肥轮作、水旱轮作等等都有利于土壤[/size][/font][url=https://www.baidu.com/s?wd=%E5%9B%A2%E7%B2%92%E7%BB%93%E6%9E%84&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]团粒结构[/size][/font][/url][font=仿宋][size=21px]的形成。[/size][/font][font=仿宋][size=21px]合理灌溉、适时耕耘[/size][/font][font=仿宋][size=21px]。[/size][/font][url=https://www.baidu.com/s?wd=%E5%A4%A7%E6%B0%B4%E6%BC%AB%E7%81%8C&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]大水漫灌[/size][/font][/url][font=仿宋][size=21px]容易破坏土壤结构,使土壤板结,灌后要适时中耕松土,防止板结。适时耕耘,充分发挥干湿交替与冻融交替的作用,有利于形成大量水不稳定性的团粒,调节土壤结构性。[/size][/font][font=仿宋][size=21px]施用石灰及石膏[/size][/font][font=仿宋][size=21px]。[/size][/font][font=仿宋][size=21px]酸性土壤施用石灰,碱性土壤施用石膏,不仅能降低土壤的酸碱度,而且有利于[/size][/font][url=https://www.baidu.com/s?wd=%E5%9C%9F%E5%A3%A4%E5%9B%A2%E8%81%9A%E4%BD%93&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]土壤团聚体[/size][/font][/url][font=仿宋][size=21px]的形成。[/size][/font][url=https://www.baidu.com/s?wd=%E5%9C%9F%E5%A3%A4%E7%BB%93%E6%9E%84%E6%94%B9%E8%89%AF%E5%89%82&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]土壤结构改良剂[/size][/font][/url][font=仿宋][size=21px]的应用[/size][/font][font=仿宋][size=21px]。[/size][/font][url=https://www.baidu.com/s?wd=%E5%9C%9F%E5%A3%A4%E7%BB%93%E6%9E%84%E6%94%B9%E8%89%AF%E5%89%82&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]土壤结构改良剂[/size][/font][/url][font=仿宋][size=21px]是根据[/size][/font][url=https://www.baidu.com/s?wd=%E5%9B%A2%E7%B2%92%E7%BB%93%E6%9E%84&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]团粒结构[/size][/font][/url][font=仿宋][size=21px]形成的原理,利用植物残体、泥炭、褐煤等为原料,从中提取[/size][/font][url=https://www.baidu.com/s?wd=%E8%85%90%E6%AE%96%E9%85%B8&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]腐殖酸[/size][/font][/url][font=仿宋][size=21px]、纤维素、[/size][/font][url=https://www.baidu.com/s?wd=%E6%9C%A8%E8%B4%A8%E7%B4%A0&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]木质素[/size][/font][/url][font=仿宋][size=21px]等物质。作为[/size][/font][url=https://www.baidu.com/s?wd=%E5%9C%9F%E5%A3%A4%E5%9B%A2%E8%81%9A%E4%BD%93&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]土壤团聚体[/size][/font][/url][font=仿宋][size=21px]的胶结物质,或模拟天然物质的分子结构和性质,人工合成高分子胶结材料。[/size][/font][font=仿宋][size=21px]土壤团粒结构是由若干土壤单粒黏结在一起形成为团聚体的一种土壤结构。因为单粒问形成小孔隙、团聚体间形成大孔隙,所以与单粒结构相比较,其总孔隙度较大。小孔隙能保持水分,大孔隙则保持通气,团粒结构土壤能保证植物根的良好生长[/size][/font][font=仿宋][size=21px]。[/size][/font]
[font=仿宋][size=21px]精耕细作、增施有机肥[/size][/font][font=仿宋][size=21px]。[/size][/font][font=仿宋][size=21px]精耕细作使表皮土壤松散,虽然形成的团粒是水不稳性的,但也会起到调节土壤孔性的作用。连续施用有机肥料,可促进水稳定性团聚体的形成,并且团粒的团聚程度较高,各种孔隙分布合理,土壤肥料得以保持和提高。[/size][/font][font=仿宋][size=21px]合理轮作倒茬[/size][/font][font=仿宋][size=21px]。[/size][/font][font=仿宋][size=21px]一年生或多年生[/size][/font][url=https://www.baidu.com/s?wd=%E7%A6%BE%E6%9C%AC%E7%A7%91%E7%89%A7%E8%8D%89&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]禾本科牧草[/size][/font][/url][font=仿宋][size=21px]或豆科作物,生长健壮,根系发达,都能促进土壤团粒的形成。[/size][/font][url=https://www.baidu.com/s?wd=%E7%A7%B8%E7%A7%86%E8%BF%98%E7%94%B0&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]秸秆还田[/size][/font][/url][font=仿宋][size=21px]、种植绿肥、粮食作物与绿肥轮作、水旱轮作等等都有利于土壤[/size][/font][url=https://www.baidu.com/s?wd=%E5%9B%A2%E7%B2%92%E7%BB%93%E6%9E%84&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]团粒结构[/size][/font][/url][font=仿宋][size=21px]的形成。[/size][/font][font=仿宋][size=21px]合理灌溉、适时耕耘[/size][/font][font=仿宋][size=21px]。[/size][/font][url=https://www.baidu.com/s?wd=%E5%A4%A7%E6%B0%B4%E6%BC%AB%E7%81%8C&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]大水漫灌[/size][/font][/url][font=仿宋][size=21px]容易破坏土壤结构,使土壤板结,灌后要适时中耕松土,防止板结。适时耕耘,充分发挥干湿交替与冻融交替的作用,有利于形成大量水不稳定性的团粒,调节土壤结构性。[/size][/font][font=仿宋][size=21px]施用石灰及石膏[/size][/font][font=仿宋][size=21px]。[/size][/font][font=仿宋][size=21px]酸性土壤施用石灰,碱性土壤施用石膏,不仅能降低土壤的酸碱度,而且有利于[/size][/font][url=https://www.baidu.com/s?wd=%E5%9C%9F%E5%A3%A4%E5%9B%A2%E8%81%9A%E4%BD%93&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]土壤团聚体[/size][/font][/url][font=仿宋][size=21px]的形成。[/size][/font][url=https://www.baidu.com/s?wd=%E5%9C%9F%E5%A3%A4%E7%BB%93%E6%9E%84%E6%94%B9%E8%89%AF%E5%89%82&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]土壤结构改良剂[/size][/font][/url][font=仿宋][size=21px]的应用[/size][/font][font=仿宋][size=21px]。[/size][/font][url=https://www.baidu.com/s?wd=%E5%9C%9F%E5%A3%A4%E7%BB%93%E6%9E%84%E6%94%B9%E8%89%AF%E5%89%82&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]土壤结构改良剂[/size][/font][/url][font=仿宋][size=21px]是根据[/size][/font][url=https://www.baidu.com/s?wd=%E5%9B%A2%E7%B2%92%E7%BB%93%E6%9E%84&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]团粒结构[/size][/font][/url][font=仿宋][size=21px]形成的原理,利用植物残体、泥炭、褐煤等为原料,从中提取[/size][/font][url=https://www.baidu.com/s?wd=%E8%85%90%E6%AE%96%E9%85%B8&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]腐殖酸[/size][/font][/url][font=仿宋][size=21px]、纤维素、[/size][/font][url=https://www.baidu.com/s?wd=%E6%9C%A8%E8%B4%A8%E7%B4%A0&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]木质素[/size][/font][/url][font=仿宋][size=21px]等物质。作为[/size][/font][url=https://www.baidu.com/s?wd=%E5%9C%9F%E5%A3%A4%E5%9B%A2%E8%81%9A%E4%BD%93&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4nhF-rA7BmHuWnW0dmHN90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPWbknHfsP10dnj0kP1fYPj0Y][font=仿宋][size=21px]土壤团聚体[/size][/font][/url][font=仿宋][size=21px]的胶结物质,或模拟天然物质的分子结构和性质,人工合成高分子胶结材料。[/size][/font][font=仿宋][size=21px]土壤团粒结构是由若干土壤单粒黏结在一起形成为团聚体的一种土壤结构。因为单粒问形成小孔隙、团聚体间形成大孔隙,所以与单粒结构相比较,其总孔隙度较大。小孔隙能保持水分,大孔隙则保持通气,团粒结构土壤能保证植物根的良好生长[/size][/font][font=仿宋][size=21px]。[/size][/font]