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試驗結果說明:有机与无机肥料的当季功效及其后效与作物关系较小,主要受土壤中水、热条件的制約,在高温干旱季节中,有机肥料分解快,当季利用系数高,后效則低;而无机肥料因缺乏必要的水分,当季效果低,后效較高。在低温与湿潤季节,有机肥料分解慢,无机肥料則有較好的效果,后效亦相反。如处于两者間的季节,則有机与无机肥料效果差异不大。因此,不依具体的土壤、气候与季节变化来考虑,武断地說有机肥当季效果低,后效高的結論,是不全面甚至是錯誤的。同时,試驗結果也說明:有机肥料的功效不仅仅能直接供应植物所需要的养分,就紅壤旱地而言,重要的还在于保水保肥以及改善土壤理化性貭的作用。根据本省气候特点,有机无机肥料的混合比例大致是这样的:冬播作物可多施无机肥料,春播晚熟或夏播作物宜多施有机肥料;春播早熟作物一般有机与无机肥料各半为宜,如春暖早,可酌量多施有机肥料,若春季气温上升很慢,則应多施无机肥料。为了在紅壤丘陵地区达到大面积平衡增产,这一分配原則与配合比例是經济而实用的,最能充分发揮有机与无机肥料的效果。
The results showed that the seasonal and organic effects of organic and inorganic fertilizers were less dependent on the crop, which was mainly controlled by the water and heat conditions in the soil. In the hot and dry season, the decomposition of organic fertilizer was fast and the seasonal utilization coefficient was high. After the effect is low; and inorganic fertilizers due to the lack of the necessary water, seasonal low effect, high after effect. In the low temperature and humid season, decomposition of organic fertilizers slow, inorganic fertilizer has a good effect, after the effect is also the opposite. If in between the two seasons, organic and inorganic fertilizer effect is not very different. Therefore, regardless of the specific soil, climate and seasonal changes to consider, arbitrarily that the organic fertilizer effect of low season, high after the conclusion is not comprehensive or even wrong. At the same time, the test results also show that the effectiveness of organic fertilizers not only directly supplies the nutrients needed by plants, but also important for water conservation and fertilization as well as the improvement of soil physicochemical properties in the case of red soil drylands. According to the climate characteristics of the province, the mixing ratio of organic and inorganic fertilizers is roughly as follows: winter planting crops can be more inorganic fertilizers, spring sowing or summer sowing crops should be more organic fertilizers; spring sown early crops generally organic and inorganic fertilizers half appropriate, If the spring and early morning, may be more organic fertilizer application, if the spring temperature rise is very slow, you should apply more inorganic fertilizers. In order to achieve a large-area balanced increase in hilly red soil regions, this distribution principle and proportion is economical and practical, and the best use of organic and inorganic fertilizers can be fully achieved.