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洛宁县地处豫西北丘陵地区,旱地小麦生产的主要障碍因素是薄、旱、粗。我们从1981—1984年在卡村驻点,研究改革卡村的耕作制度和调整作物布局,对一年一熟的晒旱麦、绿肥掩青麦和一年两熟的回茬麦三个不同茬口的麦田在不同生育期对0—200厘米土层水分动态进行了定点测定,对旱地小麦丰产经验加以科学总结,以便指导大面积生产,夺取小麦稳产多收。现就降雨较少、较旱的1981年和正常偏多的1982年(见表1),对小麦播种、越冬、返青、拔节、扬花、成熟收割六个生育期的土壤水分进行观测的结果,将旱地麦田土壤水分动态变化规律及水、肥关系作如下粗浅分析。
Luoning County is located in northwestern Henan hills, dryland wheat production is the main obstacle to thin, dry and rough. We from 1981-1984 in the village of Kashgar, to study the reform of the farming village card system and adjust the layout of the crop, a year of dry sun, green manure cover wheat and twice a year of wheat crop three different Stubble wheat field at different growth stages of 0-200 cm layer of soil moisture dynamics carried out a fixed point of scientific research on the experience of dry land wheat yield in order to guide large-scale production, to seize the wheat yield stable. The results of observing the soil moisture of six growing periods of wheat sowing, overwintering, rejuvenation, jointing, flowering and mature harvesting in 1981 with less rainfall, more drought than 1981 and normal (see Table 1) The dynamic changes of soil moisture in dryland wheat fields as well as the relationship between water and fertilizer are summarized as follows.