苏打盐碱地水稻开发综合技术模式

Integrated technique model of rice production on saline-alkali land

科学研究和生产实践都表明 ,苏打盐碱地栽培水稻是改良利用苏打盐碱地资源、增加农民收入、实现脱贫致富的最有效途径之一。苏打盐碱地水稻开发综合技术模式主要包括建立和完善水田灌排工程体系、土壤改良、施用有机肥、排水洗盐、选用耐盐碱适应性高产水稻品种、钵育大苗、平衡施肥、病虫草害防治等技术措施。以大安试区为例 ,采用该模式苏打盐碱地水稻单产达到 75 0 0kg/hm2 以上 ,经济效益显著。表 4 ,参 3。

Scientific research and production practices show that rice production on saline alkali land is one of most efficient ways to amend and utilize saline alkali land resources This integrated technique model of rice production on saline alkali land consists of establishing of sophisticated irrigation and drainage system, amending soil, applying organic fertilizers, leaching, selecting salt alkalinity rice varieties, nursing vigorous seedling in nutrientlized plastic bowl, balancing fertilization and controlling pests, diseases and weeds, etc This model on saline alkali land in Daan experiment region achieved over 7 500kg$$$$ hm 2 yield and marked economic benefit During 1995-1997, heavy drought occurred in Daan area, paddy rice on saline alkali land here still had a reasonable harvest, which provided the local farmers with enough food In 2000, another dry year in this area, rice on this kind of land gained good yield We concluded that rice on saline alkali land enjoyed high disaster tolerance With well established irrigation and drainage systems, properly planed rice production on saline and alkali land will not lead to secondary salinization of soil in this area