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Reclamation of salt-affected soils using amendments and growing wheat crop

机译：使用改良剂和种植小麦作物来复垦盐分土壤

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With more pressing demands for non-agricultural sectors, availability of good-quality water is falling short of the crop water requirement, particularly in arid and semi-arid regions of the world, like Pakistan. Studies were conducted at three sites following randomized complete block design (RCBD) with three replications. The treatments employed were: Tube well water (TW) alone; TW + Gypsum @ 50% soil gypsum requirement (TW + G50); TW–Canal water (CW) + G50; TW–CW + farm manure (FM) @ 25 Mg ha-1 (TW-CW + FM) before sowing wheat. After the harvest of wheat 2008-09, non-significant decrease in bulk density was recorded with applied treatments while infiltration rate remained unchanged. There was maximum and significant decrease in ECe and SAR with TW–CW + FM at all the three sites. Maximum decrease in ECe (72.65%) at 0-15 cm soil depth was at site 2, while maximum decrease in ECe (77.62%) at 15-30 cm soil depth was at site 1. Maximum percent decrease in SAR was 75.76% at 0-15 cm followed by 63.93% at15-30 cm at sites 2 and 3, respectively, with TW–CW + FM. Maximum wheat grain yields (3656, 3531 and 3826 kg ha-1) and straw yields (4826, 4624 and 4707 kg ha-1) were recorded at sites 1, 2 and 3, respectively, with TW–CW + FM. The net benefit was maximum with TW–CW + FM at all the three sites.
机译：随着对非农业部门的迫切需求，优质水的供应量已经无法满足农作物的用水需求，尤其是在世界干旱和半干旱地区，例如巴基斯坦。在随机完全区组设计（RCBD）之后，在三个位置进行了三个重复的研究。所采用的处理方法为：单独的管井水（TW）; TW +石膏@ 50％的土壤石膏需求量（TW + G50）; TW –运河水（CW）+ G50;小麦播种前，TW–CW +农田肥料（FM）@ 25 Mg ha-1（TW-CW + FM）。在2008-09年小麦收割之后，采用施肥处理后，堆密度没有明显下降，而入渗速率保持不变。 TW-CW + FM在这三个地点的ECe和SAR都有最大且显着的下降。在土壤深度为0-15 cm时ECe的最大下降幅度为72.65％，而在场地深度为15-30 cm处的ECe值最大减小幅度为77.62％，在地点1处。SAR的最大下降百分比为75.76％。用TW–CW + FM分别在位置2和3的0-15厘米处，然后在15-30厘米处的63.93％。使用TW–CW + FM分别在1、2和3位记录最大小麦籽粒产量（3656、3531和3826 kg ha-1）和稻草产量（4826、4624和4707 kg ha-1）。 TW-CW + FM在这三个地点的净收益最大。

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