Potato water use and yield under furrow irrigation

被引：33

作者：

Panigrahi B. ^{[1
]}

Panda S.N. ^{[1
]}

Raghuwanshi N.S. ^{[1
]}

机构：

[1] Dept. of Agric. and Food Engineering, Indian Institute of Technology

来源：

Irrigation Science | 2001年 / 20卷 / 04期

关键词：

Sandy Loam; Solanum Tuberosum; Tuber Yield; Sandy Loam Soil; Deficit Irrigation;

D O I：

10.1007/s002710100042

中图分类号：

学科分类号：

摘要：

Field experiments were conducted to study the effects of plant-furrow treatments and levels of irrigation on potato (Solanun tuberosum L.) water use, yield, and water-use efficiency. The experiments were carried out under deficit irrigation conditions in a sandy loam soil of eastern India in the winter seasons of 1991/92, 1992/93, and 1993/94. Two plant-furrow treatments and two levels of irrigation were considered. The two plant-furrow treatments were F1 - furrows with single row of planting in each ridge with 45 cm distance between adjacent ridges, and F2 - furrows with double rows of planting spaced 30 cm apart in each ridge with 60 cm distance between adjacent ridges. The two levels of irrigation (LOI) were I1 - 0.9 IW/CPE and I2 - 1.2 IW/CPE, where IW is irrigation water of 5 cm and CPE is cumulative pan evaporation. Treatment F2 produced highest tuber yield in all years with average value of 10,610 kg ha-1 and 12,780 kg ha-1 at LOI of I1 and I2, respectively. On average, six irrigations with a total of 25 cm, and seven irrigations with a total of 30 cm were required for both treatments F1 and F2 at LOI of I1 and I2, respectively. Treatment F2 resulted in a significantly higher number of branches and tubers per plant, foliage coverage and water-use efficiency for both irrigation levels than treatment F1. Average daily crop evapotranspiration was found to range from 1.1 to 3.4 mm and from 1.2 to 3.9 mm for treatment F1 and from 1.1 to 3.6 mm and from 1.2 to 4.0 mm for treatment F2 at LOI of I1 and I2, respectively.

引用

页码：155 / 163

页数：8

共 18 条

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