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144团中低产田改良经过四年试验,采取施有机肥、复播绿肥、压沙和秸秆还田,土壤容重降低12.88％,空隙度增加11.28％,地温提高2.3℃。土壤有机质除压沙田外均提高0.15—0.25％;速效氮提高6—11PPM,速效磷提高12—21PPM。总盐量减少0。24％,脱盐率21.6—37.1％。1kg标准肥增产皮棉0.70kg以上。棉花亩株数增加830—3320株,单铃重提高0.2—0.7g,单株铃数提高0.1—0.5个,皮棉单产提高9.5—18.3kg,增产17—33％。平整土地亩灌水量减少20—30方,降低17—26％,棉花亩株数增加2000—3500株,提高28—46％,减害面积由8％降低到5％。
After four years of experiments, organic fertilizers, compound green manure, sand compost and straw returning were used. The soil bulk density decreased by 12.88%, the porosity increased by 11.28% and the soil temperature increased by 2.3 ℃. The content of soil organic matter increased 0.15-0.25% except for Shatin, the available nitrogen increased 6-11PPM, the available phosphorus increased 12-21PPM. Total salt reduction of 0.24%, desalination rate of 21.6-37.1%. 1kg standard fertilizer increased lint 0.70kg or more. The number of cotton acres increased 830-3320 strains, single boll weight increased 0.2-0.7g, bolls per plant increased by 0.1-0.5, lint yield increased by 9.5-18.3kg, an increase of 17-33%. The amount of mu in the flat land decreased by 20-30 square meters, a decrease of 17-26%. The cotton acreage increased by 2,000-3500 mu, increased by 28-46% and the harm reduction area decreased from 8% to 5%.