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豫南位于北亚热带北缘,气候温和湿润,雨量充沛,地带性土壤较为发育,农业生产条件较好,为河南水稻、小麦、油菜集中产区。近年来,随着氮肥的大量施用,单位面积产量不断提高,但是,却出现了稻麦空秕率增高,千粒重下降,油菜花而不实,紫云英长势衰退等现象,影响到产量的提高。为达到农业的持续高产与稳产,我们调查并分析了土壤中硼、钼、锌等微量元素的含量,开展了硼、钼、锌肥效试验,探索不同作物对微肥肥效之反应,寻找适宜的微肥施用技术措施,以期改变作物结实性状,达到持续增产的目的。
South Henan is located in the northern margin of the northern subtropics, mild climate, abundant rainfall, more developed zonal soil, agricultural production conditions better, Henan, rice, wheat, rape concentrated areas. In recent years, with the large-scale application of nitrogen fertilizer, the yield per unit area has been continuously increased. However, the phenomenon of increased empty rice yield, reduced grain weight, reduced rape blossoms, . In order to achieve continuous high yield and stable production in agriculture, we investigated and analyzed the contents of trace elements such as boron, molybdenum and zinc in soils, carried out fertilizer efficiency tests on boron, molybdenum and zinc, and explored the response of different crops to the fertilizer efficiency to find appropriate Fertilizer application of technical measures, with a view to changing the traits of crops, to achieve the purpose of continued production.