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烤田是我国农民栽培水稻的一项传统技术措施.现在,烤田已被广泛应用于生产实践,以控制水稻的生长发育,达到增产目的.我们曾应用放射性同位素P~(32)、C~(14)探索水稻拔节孕穗期烤田对养分吸收、分配和转移积累的规律,及烤田对光合作用及其产物在植株体内的转移和积累规律,为烤田提供理论依据.现整理发表,供参考. 一、试验处理和方法双晚稻烤田盆栽试验,设轻烤、重烤、湿润和不烤(保持水层2寸左右) 四个处理、三次重复.土壤样品于装盆前采集,是发育在下蜀黄土上的水稻土;PH6·9,有机质含量0·92%,全N0·07%,K_2O1.50%,P_2O_50·
Baked fields are a traditional technical measure for farmers to cultivate rice in our country.Nowadays, baked fields have been widely used in production practice to control the growth and development of rice and achieve the purpose of increasing yield.We have applied radioactive isotopes P ~ (32), C ~ (14) To explore the regularity of nutrients absorption, distribution and accumulation in the paddy field at jointing-booting stage and the law of photosynthesis and its translocation and accumulation in plant, For reference.First, the experimental treatment and methods Double late potted rice pot experiment, set the light roasted, re-roasted, moist and not roasted (to keep the water layer 2 inches) four treatments, three replicates.The soil samples collected before loading, Is a paddy soil developed on Xiashu loess; PH6 · 9, organic matter content of 0.92%, total N0 · 07%, K_2O1.50%, P_2O_50 ·