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从1981～1982年，包括原苏州地区三种主要土壤类型上的8个点的小麦试验材料的分析，得到以下结果：1．不同土壤及不同施肥水平处理的小麦，单产均有明显差别。2．在增施磷肥条件下，百斤硫酸铵三等分，分别作小麦的基、苗、拔节肥或基、腊、拔节肥或不施基肥只施苗、腊、拔节肥，单产无显著差别。如果以三分之二的用量作基肥，其余作拔节肥，单产即受影响，比基、苗、拔或基、腊、拔处理的单产下降，差异达到显著程度。如果在基肥中增施20担有机肥，小麦单产可更加提高。根据以上对比，在百斤硫酸铵施肥水平条件下，每斤硫酸铭可增产小麦1．57～1．82斤，与1980～1981年的结果相近。每担有机肥（猪灰为主）约增产3．1斤小麦。3．土种间小麦单产差别明显。如果将8个处理小麦单产加以乎均，则黄泥土最高，两个点平均为635斤，黄泥白土、白士次之，三个点平均520斤；青泥土最低，三点平均335斤。百斤氮肥水平下，不同土种上每斤硫酸铰的增产量以黄泥白土及白土最高，为2．2斤；青泥土为1．5斤；黄泥土斤肥增产量最低，为玉．4斤。每担有机肥的增产效果，黄泥土为3．7斤；黄泥白土及白土为3．2斤；青泥土卜有机肥徽果最美．只有2．7斤。4．综合各试验的穗数、每穗粒数及千粒重的材料看出，土壤固子对产量结?
From 1981 to 1982, including the analysis of eight wheat test materials on the three main soil types in the former Suzhou area, the following results were obtained: 1. Different soil and different fertilization levels of wheat, the yield was significantly different. 2. Under the condition of adding phosphate fertilizer, three kilograms of ammonium sulfate were divided into three groups: wheat base, seedling, jointing fertilizer or basal, wax, jointing or non-fertilizing only applied seedling, wax and jointing fertilizer respectively. There was no significant difference in yield. If two-thirds of the amount used as basal fertilizer, the rest of the jointing fertilizer, yield is affected, than the base, seedlings, pull or base, wax, pull the drop in yield, the difference reached a significant level. If the increase in the basal fertilizer 20 organic manure, wheat yield can be increased. According to the above comparison, under the condition of applying 100 kg of ammonium sulfate fertilizer, the yield per kilogram of sulfuric acid can increase the yield of wheat by 1.57-1.82 kg, which is similar to the result of 1980-1981. Each organic fertilizer (pig-based) increased by about 3.1 kg of wheat. 3. Soil between wheat yields significantly different. If the eight wheat yield per treatment to be equal, then the highest yellow soil, two points average 635 pounds, yellow clay, white followed by three points average of 520 pounds; the lowest green soil, three points average of 335 pounds. At the level of N fertilizer, the yield of hinges per kilogram of sulphate on different soil types was the highest in clay and clay, 2.2 kg; the clay was 1.5 kg; the yield of yellow soil was the lowest, which was jade. 4 pounds. Yield per organic fertilizer yield, yellow soil is 3.7 pounds; yellow clay and clay for 3.2 pounds; green soil, BU organic fertilizer the most beautiful logo. Only 2.7 pounds. 4. According to the data of spike number per panicle, grains per spike and grain weight of one thousand,