论文部分内容阅读
美国农业部农业研究公报报告,在加利福尼亚州,以前西红柿高产纪录为每英亩75吨,平均产量为每英亩26吨,而土壤学家克劳德费恩在实验田使用地下滴灌系统浇水或浇灌肥料创造了每英亩生产100吨西红柿的高产纪录。这一大幅度的增产是靠当作物需水供应时利用电子计算机计算滴灌应补充的水量而
The USDA Agricultural Research Bulletin reports that in California, tomato production was previously recorded at 75 tonnes per acre with an average yield of 26 tonnes per acre while soilographer Claude Fern was dripped or irrigated in an experimental field using an underground drip irrigation system Fertilizer created a record yield of 100 tons of tomatoes per acre. This sharp increase is due to the use of electronic computers to calculate the amount of water that drip irrigation should replenish as crop water supplies