Field trials show that calcium fertilizer is effective to increase crop's yield, avoid disease and improve quality.
通过大量的农田试验说明钙肥对作物增产、防病和改善品质的作用。
Field trials show: compared with common NPKs, specialty fertilizers increase the yield of wheat by 5.9%, rape seed by 7.2%, rice by 7.3%, vegetable by 9.1%, and the application frequency is decreased.
田间试验表明：施用腐植酸系列专用肥与普通复混肥相比，小麦平均增产7.2%，油菜平均增产7.2%，水稻平均增产7.3%，蔬菜平均增产9.1%，且可减少施肥次数。
Field trials were made on winter wheat, maize and rape, the results show a sharp yield increase by the application of these sludge fertilizers.
加工复合微生物肥料。对试制的污泥肥进行冬小麦、玉米、油菜施肥试验，结果表明污泥肥可使作物大幅度增产。
Over 21 field trials were conducted in different soils to show the sulphur responses to rice, corn, wheat, and rapeseed.
在不同类型土壤上布置21个田间试验，研究硫肥对水稻、玉米、小麦、油菜的效果。
Over 21 field trials were conducted in different soils to show the sulphur responses to rice, corn, wheat, and rapeseed.
在不同类型土壤上布置21个田间试验，研究硫肥对水稻、玉米、小麦、油菜的效果。
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