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(一)洪灌就是利用雨季洪水进行灌溉,通称培肥灌溉。洪灌又分为洪淤和洪浇。所谓洪淤就是引用洪水淤灌沙、荒地或土壤贫瘠的地,以达到不断地改良土壤,逐步提高土壤肥沃度,把瘠地变良田的目的,为次年丰收打好基础。洪淤大都是无作物或不以供作物用水为目的的灌溉,灌水定额不受限制,有洪水就可浇灌。洪浇除了包含有改良土壤的意义之外,主要的还是对作物适时适量的供水灌溉,以达到当年庄稼丰收增产的目的。经过洪灌的地一般都增产50%到100%。应县南马庄过去的土壤很贫瘠,加上逐步盐渍化,每亩地多不过产五、六十斤,经过引浑河之水逐年淤灌,改良了土壤,又结
(A) Flood irrigation is the use of rainy season flood irrigation, known as fertilizer irrigation. Flood irrigation is divided into flood and flood pouring. The so-called flood and silt is to refer to flood silt irrigation and irrigation, barren land or barren land, in order to achieve continuous improvement of soil, and gradually increase soil fertility, the barren land into arable land for the purpose of lay the foundation for the harvest the following year. Flood silting is mostly irrigated without crops or for the purpose of crop water use, irrigating quotas are unrestricted, and floods can be irrigated. In addition to implying the significance of improving soils, the main reason for this is to irrigate timely and appropriate supply of crops in order to achieve the purpose of increasing the yield of crops in that year. After flood irrigation generally increase production 50% to 100%. Ying County, South Ma Zhuang past the soil is very poor, with the gradual salinization, but no more than five or six pounds per mu, after cited the Hun River water siltation year by year, improved soil, knot