Conservation Management Practices and Rotations for Irrigated Processing Potato in Southern Alberta

Larney, Francis J.; Pearson, Drusilla C.; Blackshaw, Robert E.; Lupwayi, Newton Z.; Lynch, D. R.

doi:10.1007/s12230-015-9487-z

Cited by 16 publications

(14 citation statements)

References 53 publications

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“…Timothy and oat were included in the 6-yr rotation. The effects of rotation and soil management on dry bean (Larney et al 2015) and potato (Larney et al 2016) performance and surface soil quality (Li et al 2015) have already been reported. The specific objectives of this paper are to assess sugar beet yield and quality over 12 yr under CONV and CONS soil management in rotations ranging from 4 to 6 yr in length.…”

Section: Introductionmentioning

confidence: 99%

Sugar beet response to rotation and conservation management in a 12-year irrigated study in southern Alberta

Larney

Nitschelm²,

Regitnig³

et al. 2016

Can. J. Plant Sci.

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Sugar beet (Beta vulgaris L.) has a long history as an option for irrigated crop rotations in southern Alberta. A 12-yr (2000–2011) study compared conservation (CONS) and conventional (CONV) management for sugar beet in 4- to 6-yr rotations which also included dry bean (Phaseolus vulgaris L.), potato (Solanum tuberosum L.), and soft white spring wheat (Triticum aestivum L.). Oat (Avena sativa L.) and timothy (Phleum pratense L.) were included in the longest 6-yr rotation. Conservation management incorporated reduced tillage, cover crops, feedlot manure compost addition, and solid-seeded dry bean. Compared with a 4-yr CONV rotation (52.2 Mg ha−1), sugar beet root yield (averaged over the second 6 yr of the study, 2006–2011) was significantly higher, by 11%, on 4- and 5-yr CONS rotations (57.7–57.9 Mg ha−1), and by 8% on a 6-yr CONS rotation (56.1 Mg ha−1). Sugar beet impurity parameters were significantly affected by rotation in, at most, 3 of 12 yr. However, averaged over the final 6 yr of the study (2006–2011), a significantly higher K concentration (impurity) was found with CONS (2108 mg kg−1) vs. CONV (1958 mg kg−1) management. Integrating CONS management practices into sugar beet rotations led to significant yield benefits while effects on sugar beet quality were minimal.

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Section: Introductionmentioning

confidence: 99%

Sugar beet response to rotation and conservation management in a 12-year irrigated study in southern Alberta

Larney

Nitschelm²,

Regitnig³

et al. 2016

Can. J. Plant Sci.

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“…The four CONS management practices on the CONS rotations (reduced tillage, cover crops, compost addition, and narrow-row dry bean) were outlined by Li et al (2015), and specifically as they related to dry bean (Larney et al 2015), potato (Larney et al 2016b), and sugar beet (Larney et al 2016a). The CONV rotations received none of these four practices.…”

Section: Conservation Management Practicesmentioning

confidence: 99%

“…Herbicides, insecticides, and fungicides were used as required for adequate weed, insect, and disease control, with details provided by Larney et al (2015Larney et al ( , 2016aLarney et al ( , 2016b). All crops were irrigated using a wheel-move system to maintain soil water content at ≥50% field capacity.…”

Section: Crop Managementmentioning

confidence: 99%

“…Mean annual irrigation amounts (n = 12) were 421 mm for potato, 333 mm for dry bean, 440 mm for sugar beet, 325 mm for wheat, 145 mm for oat, and 444 mm for timothy. Each fall, mature crops were harvested for yield and quality assessment as reported by Larney et al (2015Larney et al ( , 2016aLarney et al ( , 2016b. Oat on 6-CONS was harvested as silage in July, and timothy on 6-CONS was harvested in first (late June to mid-July) and second (September to early October) cuts.…”

Section: Crop Managementmentioning

confidence: 99%

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Soil changes over 12 years of conventional vs. conservation management on irrigated rotations in southern Alberta

et al. 2017

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Increased irrigated production of potato (Solanum tuberosum L.), dry bean (Phaseolus vulgaris L.), and sugar beet (Beta vulgaris L.) in southern Alberta in the 1990s prompted a 12 yr (2000-2011) study to evaluate conservation (CONS) management practices for these crops in 3-6 yr rotations. Conservation management included reduced tillage, cover crops, compost, and narrow-row dry bean. After 12 yr, soil organic carbon (SOC) at 0-30 cm depth increased by 0.48 Mg ha −1 yr −1 on a 5 yr CONS rotation, in line with average cumulative compost addition of 154 Mg ha −1. In contrast, SOC stocks on a 3 yr conventional (CONV) rotation, which did not receive compost, declined by 0.25 Mg ha −1 yr −1. Nitrate-N did not accumulate in the soil profile under CONS management, as it was largely influenced by previous crop. In contrast, available P increased with compost addition under CONS management, leading to surface buildup and downward movement in the soil profile. At 0-120 cm depth, the CONS rotations showed 26%-53% higher available P than CONV rotations between 2005 and 2011. Apart from a caveat regarding potential P accrual, the CONS management package in this study was validated as soil building for irrigated cropping systems in southern Alberta.

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“…Menurut Suganda et al (1997), meskipun bedengan searah lereng berpengaruh baik terhadap pertumbuhan tanaman, namun cara ini memberikan dampak negatif berupa besarnya laju aliran permukaan dan erosi sehingga berakibat penggunaan pupuk tidak efisien karena banyak yang hanyut, mempercepat proses degradasi lahan, dan berkontribusi terhadap banjir dan kekeringan di daerah hilir. Dengan demikian, penerapan sistem usahatani konservasi dapat meningkatkan produktivitas lahan dengan menurunnya laju erosi (Idjudin et al 2003, Syam 2003, Anonymous 2011 dalam Winardi 2011), serta mengurangi serangan penyakit dengan kualitas umbi lebih baik (Larney et al 2016). …”

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Kajian Budidaya Kentang Ramah Lingkungan dengan Teknik Konservasi Tanah di Lahan Kering Berlereng

Arifin¹,

Sutrisno²,

Korlina³

et al. 2017

J.Hort

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ABSTRAK. Penanaman kentang searah lereng sering dilakukan di lahan-lahan curam sehingga memberikan dampak negatif berupa meningkatnya laju aliran permukaan dan erosi, serta mempercepat proses degradasi lahan. Untuk itu diperlukan teknik konservasi tanah yang murah dan mudah diterapkan oleh petani sehingga produktivitas tanaman kentang meningkat dan sekaligus dapat mengendalikan kecepatan aliran permukaan dan erosi. Penelitian bertujuan memperoleh teknologi usahatani konservasi kentang yang dapat mengurangi laju erosi dan ramah lingkungan serta mampu meningkatkan produktivitas dan pendapatan usahatani kentang. Lokasi penelitian terletak di sentra produksi kentang lahan kering dataran tinggi dengan ketinggian tempat 1.725 m dpl., dan kemiringan lahan 40% di Desa Tosari, Kecamatan Tosari, Kabupaten Pasuruan, pada musim hujan 2014/2015. Rancangan percobaan secara acak kelompok dengan tujuh perlakuan dan empat ulangan. Perlakuan teknik konservasi tanah meliputi: (1) teknologi petani A (bedengan searah lereng), 125 kg Urea/ha + 200 kg ZA/ha + 75 kg SP36/ha + 250 kg Ponska/ha + 5 ton pupuk organik/ha, (2) teknik konservasi B1 (bedengan kemiringan 30 o ), 300 kg Urea/ha + 350 kg ZA/ha + 200 kg SP 36/ha + 100 kg KCl/ha + 2,5 ton pupuk organik/ha, (3) teknik konservasi B2 (bedengan kemiringan 30 o ), 150 kg Urea/ha + 200 kg ZA/ha + 100 kg SP36/ha + 50 kg KCl/ha + 5 ton pupuk organik/ha dan Trichoderma, (4) teknik konservasi C1 (bedengan searah lereng selang seling guludan kontur), 300 kg Urea/ha + 350 kg ZA/ha + 200 kg SP 36/ha + 100 kg KCl /ha + 2,5 ton pupuk organik/ha, (5) teknik konservasi C2 (bedengan searah lereng selang seling guludan kontur), 150 kg Urea/ha + 200 kg ZA/ha + 100 kg SP36/ha + 50 kg KCl /ha + 5 ton pupuk organik/ha dan Trichoderma, (6) teknik konservasi D1 (teras kredit dengan bedengan searah lereng), 300 kg Urea/ha + 350 kg ZA/ha + 200 kg SP36/ ha + 100 kg KCl/ha + 2,5 ton pupuk organik/ha, dan (7) teknik konservasi D2 (teras kredit dengan bedengan searah lereng), 150 kg Urea/ha + 200 kg ZA/ha + 100 kg SP36/ha + 50 kg KCl/ha + 5 ton pupuk organik/ha dan Trichoderma. Hasil penelitian menunjukkan penerapan teknik konservasi tanah dengan perlakuan bedengan searah lereng selang seling guludan kontur di lahan berlereng > 40% disertai pemupukan ½ dosis rekomendasi (150 kg Urea/ha + 200 kg ZA/ha + 100 kg SP36/ha + 50 kg KCl/ha + 5 ton pupuk organik/ha dan Trichoderma) menghasilkan umbi 37,7 ton/ha serta bawang prei 1,54 ton/ha yang ditanam pada areal guludan kontur dan secara ekonomi menguntungkan dengan R/C ratio 4,25. Dengan demikian, teknik konservasi tanah searah lereng selang seling guludan kontur mampu mengurangi erosi dan penggunaan pupuk kimia serta meningkatkan hasil dan pendapatan usahatani kentang.Kata kunci: Budidaya kentang; Teknik konservasi; Lahan kering berlereng; Erosi; Produktivitas ABSTRACT. Planting potatoes in a slope direction is often done on steep terrain so as to have a negative impact of increased run-off and erosion, and accelerate the process of land degradation. For that, requi...

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Conservation Management Practices and Rotations for Irrigated Processing Potato in Southern Alberta

Cited by 16 publications

References 53 publications

Sugar beet response to rotation and conservation management in a 12-year irrigated study in southern Alberta

Sugar beet response to rotation and conservation management in a 12-year irrigated study in southern Alberta

Soil changes over 12 years of conventional vs. conservation management on irrigated rotations in southern Alberta

Kajian Budidaya Kentang Ramah Lingkungan dengan Teknik Konservasi Tanah di Lahan Kering Berlereng

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