downland

Effect of applied K Fertilizer in downland drab soli on sweet potato yield and quality

岗地褐土施用钾肥对甘薯产量和甘薯品质的影响

Microclimate in the Downland Region of Taihang Mountains and the Construction of Artifical Vegetation

太行山低山丘陵区小气候条件与人工植被建设

A Preliminary Study on the Influence of Mixed Manuring and Fertilization on the Fertility of Downland Loss and Yield of Crops

配方施肥对岗黄土肥力和作物产量作用的初探

From the type of tobacco-growing soil it could be concluded that the average content of available K in downland was higher than that in paddy soil .

从植烟土壤类型看，岗坡地土壤速效钾平均含量大于水稻土。

The main factors influencing the wheat yield in downland were initial nitrogenous dressing , the amount of nitrogenous fertilizer applied for differ - ent leaf age and close fertilization .

对模型进行解析，找出了影响五区小麦产量较大的因子是氮基肥、不同叶龄追施氮肥和密度。

However , because of the unreasonable breed structure , excessive concentration of mature , and most distribution area : downland and the slopes , the level of citrus mechanization is low .

但由于品种结构不合理，成熟期过于集中，且大都分布在岗地和山坡上，柑橘机械化程度低。