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我县深丘山区稻田21万余亩,其中冬水田有7.6万余亩,占稻田面积的36.2%,主要分布于海拔400—900米地带。由于山高、沟深、谷窄,地势起伏大,气温较低,日照较少,年降雨量1,200毫米以上,时空分布不匀,春迟秋早,水冷泥温低,自然肥力差,水稻栽后常易坐蔸,致使稻苗不扎根,返青慢,分蘗迟,分蘗少,长势弱,穗数不足,穗小粒少,结实率低,单产低下,仅250、300公斤,成为影响水稻平
There are more than 21,000 mu of paddy fields in deep mountainous area of our county, of which there are more than 76,000 mu of winter paddy fields, accounting for 36.2% of the paddy field area, mainly distributed in the 400-900 meter above sea level. Due to the mountainous, ditch deep, narrow valley, the terrain ups and downs, the temperature is low, less sunshine, the annual rainfall of 1,200 mm above, uneven temporal and spatial distribution, early spring and early autumn, low water temperature, poor natural fertility, It is easy to sit, resulting in rice seedlings do not take root, turn green slowly, late tillering, less tillering, weak growth, less spikelets, fewer spikelets, low seed set, low yield, only 250,300 kg,