论文部分内容阅读
在水稻高产栽培中,育足适龄壮秧是保面积、保密植、保季节的重要一环,也是争取早活早发、抗病抗灾、早熟高产的关键。由于早稻的感温性较强,营养生长期很短,秧苗密度又高,对秧龄要求很严,再加上春季天气多变,低温阴雨容易造成烂秧死苗,持续高温,又往往出现超龄小穗。因此,要育足壮秧,就要防止烂秧;要保证适龄,就要防止超龄。
In high-yielding cultivation of rice, it is an important part of protecting the area, keeping secret and planting season, and also the key to win early, early onset, disease resistance and disaster prevention and high yield of early maturity. Due to the strong sense of temperature of early rice, vegetative growth period is very short, seedling density is high, very strict requirements on the seedling age, coupled with the changing weather in spring, cold and rainy weather easily lead to rotten seedlings, sustained high temperature, often over-age Spikelets. Therefore, to nurture strong seedlings, we must prevent rotting seedlings; to ensure age, we must prevent over age.