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当前,在我省农业生产中,肥料不足、肥效低与作物增产需肥的矛盾仍很突出。为探讨连续施肥的效应变化和对土壤肥力及作物产量的影响,逐步掌握土壤肥力变化的规律,加速我省中、低产田的培肥和水稻增产提出相应的合理施肥措施,特进行有机无机肥料配合施用定位试验。现将1983～1985年的试验结果总结于后。 一、试验概况 试验于1983年春在平坝县乐歌乡黄壤改良基点上进行,供试土壤系我省代表性大的低产黄泥田,耕作层(0～15厘米)含有机
At present, in the agricultural production in our province, the contradiction between insufficient fertilizers, low fertilizer efficiency and increasing demand for fertilizer by crop production is still outstanding. In order to explore the effect of continuous fertilization and its impact on soil fertility and crop yield, and gradually master the law of soil fertility changes, accelerate the middle and low yielding fields in our province and rice paddy yield increase put forward appropriate fertilization measures, special organic and inorganic fertilizers With the application of positioning test. Now 1983 ~ 1985 test results summarized in later. First, the test profile The test in the spring of 1983 in Pingba County, yellow soil improvement song base song carried out for the test of soil in our province representative low-yielding yellow clay fields, farming layer (0 ~ 15 cm) containing organic