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我国南方热量充足,雨量丰富,有利于农业复种指数的增加和多种经济植物的栽培;但雨量分配不均,不同地点分别会发生春旱、秋旱和秋涝。南方有不少肥沃土壤,由于复种指数较大,土壤养分每年消耗较多,加以受雨水淋洗和母岩成分的影响,土壤养分需要不断补充。南方的地形是十分复杂的,有利于发展农、林、牧、副、渔业的多种经营,但局部气候和土壤变化很大,农业推广工作如果忽略因地制宜原则,就难以奏效。本文仅就改善肥、水状况,充分合理利用自然条件,试论当前南方农业增产的几个基本问题。
Sufficient rainfall and abundant rainfall in southern China are conducive to the increase of agricultural multiple cropping index and the cultivation of a variety of economic plants. However, the rainfall is unevenly distributed, and spring drought, autumn drought and autumn flood occur in different places respectively. There are many fertile soils in the South. Due to the large multiple cropping index, soil nutrients consume more each year and are affected by rainwater rinse and parent rock composition. Soil nutrients need to be constantly replenished. The terrain in the south is very complicated and conducive to the diversification of agriculture, forestry, animal husbandry, fishery and fishery. However, the climate and soil in the area vary greatly. If the principle of local conditions is neglected, agricultural extension will be ineffective. In this paper, we only discuss the improvement of the status of fertilizer and water and the rational use of natural conditions.