论文部分内容阅读
我市广大贫下中农在蔬菜育苗上创造出许多先进经验,主要有:①应用营养土块和营养袋(用旧塑料袋或纸袋)育苗,它能改善苗期的营养条件,减少苗期病害。②在水分管理上,过去是底水大(润透床土3～4寸),结果湿度大,土温低,通透性不好,影响出苗;现在改为底水适当(润透床土2寸左右).能保证正常出苗,出苗后采取片土保墒和少浇、勤浇以及那里干旱浇那里的办法,促进了苗齐、苗壮。③温度管理上,过去是“高——低——高”,即播种至出苗给予高温(适温偏高,促进出苗),出苗后降温(控制徒长),移植时再给高温(促进缓苗),反应在小苗上是徒长一段,受阻一段,因而长
The majority of poor peasants and middle peasants in our city have created many advanced experiences in vegetable nursery. They mainly include: ① Nursery nutrition blocks and nutrition bags (using old plastic bags or paper bags) can improve seedling nutrient conditions and reduce disease at seedling stage. ② in the water management, the past is the end of the big water (run through the bed 3 to 4 inches), the result of humidity, low soil temperature, poor permeability, affecting the emergence; now end of the water appropriate 2 inches.) To ensure the normal emergence, after taking the soil to soil moisture and less pouring, pouring and where there is a drought pouring methods to promote the Miao Qi, Miao Zhuang. ③ temperature management, the past is “high - low - high”, that is, sowing to the emergence of high temperature (suitable for high temperature, to promote emergence), post-emergence cooling (control leggy), give high temperature transplant ), The reaction in the seedlings is leggy, blocked for a while, and therefore long