论文部分内容阅读
关于红壤地区深耕对当季作物(油菜)效果,已于1959年作了初报(参阅土壤通报同年6期),初步肯定了红壤丘陵地与谷地适宜的耕作深度及其对底土熟化作用。为继续弄清适宜耕作深度并观测其后效,在第一次作物油菜收获后,在坡地与谷地试验田,分别扦插红薯与播种大豆(大豆未获产量数据)。同时为进一步摸索深耕与施肥的相关性,特于甘家山红壤试验场谷地,进行补充试验。该地段土壤质地粘重,耕作层浅薄,底层紧实;群众长期种植水稻,微度熟化,肥力尚低,耕层全氮量0.068％,磷酸含量
The effect of deep plowing on seasonal crops (rapeseed) in red soil area was first reported in 1959 (refer to the sixth report of the same year in soil information), and the suitable tillage depth and maturity effect on subsoil of red soil hilly and valley areas were preliminary confirmed. To continue to understand the appropriate depth of cultivation and to observe its aftermath, sweet potatoes and sown soybean (no yield data for soybean) were cuttings on the sloping fields and valleys, respectively, after the first crop of rapeseed. At the same time, in order to further explore the correlation between deep plowing and fertilization, especially in the Ganjia red soil test site valley for supplementary testing. The soil texture of the lot of sticky, tillage shallow, bottom compact; masses of rice long-term cultivation, micro-maturation, fertility is still low, tillage total nitrogen 0.068%, phosphoric acid content