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水稻旱地育秧栽培技术是在引进吸收日本水稻寒地旱育稀植技术的基础上,结合我国南方稻区的气候、土壤、种植制度、品种等条件改进而成的一项水稻栽培新技术,在南方稻区得到迅速推广应用。现将这项技术的应用效应及栽培技术要点综述如下:一、应用效应(一)能早播、早栽、早熟。旱地育秧的苗床由于土壤含水率低、通气性好、热容量小,早春苗床升温快,达到水稻生物学下限温度早,故能提早播种和移栽。
Rice cultivation techniques in the dry land for raising rice seedlings are a new rice cultivation technique based on the introduction of the technology of dry-farming and sparse planting of cold paddy in Japan and the improvement of the climate, soil, planting system and varieties in southern rice paddies of our country. The southern rice area has been rapidly popularized and applied. Now the application of this technology and the cultivation techniques of the main points are summarized as follows: First, the application effect (A) to early sowing, early planting, early maturity. Because of low soil moisture content, good aeration and small heat capacity, the seedbed of dry land seedling raising rapidly in early spring and reaching the lower limit of biological temperature of rice so it can be planted and transplanted earlier.