一、我区水稻低产的原因水稻是高产作物,但在我区产量不高,平均亩产仅200多斤。其低产的原因,主要是过去在栽培上采用水直播,耕作粗放,施肥水平低,播种迟,保苗稀,种子混杂,稻瘟病重,杂草多,渍水淹苗(简称“粗、低、迟、稀、杂、病、草、渍”八字问题)。因而直接影响水稻的高产多收。同时由于我区属于北方寒地水稻栽培区,无霜期较短,春秋两季气温较低,而且很不稳定,霜期赶前错后,特别在春季,不但有长时期的低温, First, the reason for the low yield of paddy rice in our region is a high-yielding crop, but in my area yield is not high, the average yield of only 200 kilos. The reason for its low yield is mainly the fact that in the past, water cultivation was used for direct seeding, extensive cultivation, low fertilization level, late sowing, seedling thinning, mixed seeds, heavy blast, weeds and waterlogged seedlings (referred to as crude, Late, thin, miscellaneous, disease, grass, stains "character problem). Which will directly affect the yield of rice. At the same time as my area belongs to the northern cold paddy cultivation area, frost-free period is short, the spring and autumn temperatures are low, and very unstable, the frost period rush ahead, especially in the spring, not only long-term low temperature,