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中国民族教育2005·3郭思乐教授在其专著《教育走向生本》中讲了一个抛秧的故事。过去,农民从育秧田里把秧苗拔起,把秧苗一小撮一小撮地插得密密的,以为会增产。后来,农民改在育秧盘里培育块状秧苗,把插秧改为抛秧,这样,既减轻了劳作之苦,又带来了丰收的喜悦。原因分析:在拔秧和密植插秧中,固然灌注了丰收的愿望,却损伤了秧苗的根系,违背了秧苗自然生长的规律;反之,小块状抛秧顺应了它的自然生长,为根系的分蘖提供了机会,自然就会增产。世间万物生灵讲求一种自然生态,知识的教与学也如此。学生在学习中并不是不能接受外来的规范、规则,而是… 相似文献
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在农人看来,芒种就是抢收抢种,一切都需要抢,这是一年中最为忙碌和辛劳的时候,也是作为一个农人的宿命。他们用自己的双手把诗行直接书写在大地上,展示给蓝天白云,让太阳、月亮、飞鸟和风雨雷电来评判。 相似文献
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针对我地水稻生产情况,要获得更高产量,下面存在的一些问题需要解决: 1、撒播不宜过密。播种量越大,土壤养分条件与空间条件就越差,秧苗的素质也越差。当前,大多数农民仍采用地膜育秧技术,很多秧苗的秧龄超过五十天后才移栽。这中间存在的一个突出问题是:稻种播得过密,每平方尺秧田播种量普遍超过60粒稻种。于是,秧苗的争光争肥矛盾随着秧龄的增长日趋突出,极不利于培育壮秧壮苗。鉴于此,稻种的撒播密度应控制在每平方尺秧田 相似文献
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Studies were initiated for two consecutive years to find out the effect of time of transplanting and seedlings hill^-l on the productivity of rice in Dera Ismail Khan district of North West Frontier Province (NWFP), Pakistan. The experiment was laid out in a randomized complete block design with split plot arrangements. Main plots consisted of four transplanting dates viz. 20th and 27th of June and 4th and 1 lth of July while sub-plots contained 1, 2, 3 or 4 seedlings hill^-1. Among transplanting dates, June 20th planted crop gave highest paddy yield and net return with I seedling hill^-1. It explains that the use of more seedlings hill^-1 not only adds to cost but is also a mere wastage of natural resources. Based on research findings, we conclude that the use of I seedling hill^-1 is most appropriate for timely sowing otherwise 4 seedlings hill^-1 should be used to compensate for the yield gap in late transplanted rice. 相似文献
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