抄録
The impoverished Namibian soils can very well be enriched with nutrients by applying cattle manure, especially when resource-poor farmers are unable to purchase expensive chemical fertilizers. In this study, effects of cattle manure on different cropping patterns, i.e., mono- and mixed-cropping of pearl millet (Pennisetum glaucum L.) and cowpea (Vigna unguiculata L.) were compared across three cropping seasons at manure application rates of 0, 31 and 62 Mg ha−1. The experimental plots were laid out in a randomized complete-block design with four replications. The parameters measured were growth and yield of the crops, soil organic carbon (SOC), total soil N, available soil P, and exchangeable soil K. The SOC was determined by the Black-Walkley protocol, total N by the modified Kjeldahl method, available P by the Olsen method, and exchangeable K by ammonium acetate extraction. Application of 31 Mg ha−1 cattle manure increased SOC, total soil N, available P, and exchangeable K 1.3, 1.2, 1.2, and 1.4 times, respectively, over the control; the respective increase by the addition of 62 Mg ha−1 was 1.7, 1.5, 1.3, and 2.1 times. However, differences between 31 and 62 Mg ha−1 manure were not significant for SOC, total soil N, and available P, except for exchangeable K. Both grain yield and biomass yield of pearl millet increased with the application of 31 Mg ha−1 manure, but declined with the application of 62 Mg ha−1 manure, whereas grain yield and biomass yield of cowpea declined with the addition of 62 Mg ha−1 manure. Both cowpea and pearl millet yielded more when intercropped than when grown as monocultures.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 395-409 |
| ページ数 | 15 |
| ジャーナル | Journal of Crop Improvement |
| 巻 | 33 |
| 発行部数 | 3 |
| DOI | |
| 出版物ステータス | 出版済み - 5 4 2019 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Agronomy and Crop Science
- Genetics
- Soil Science
- Plant Science
これを引用
Cattle manure and intercropping effects on soil properties and growth and yield of pearl millet and cowpea in Namibia. / Watanabe, Yoshinori; Itanna, Fisseha; Izumi, Yasuhiro; Awala, Simon K.; Fujioka, Yuichiro; Tsuchiya, Kenta; Iijima, Morio.
：: Journal of Crop Improvement, 巻 33, 番号 3, 04.05.2019, p. 395-409.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Cattle manure and intercropping effects on soil properties and growth and yield of pearl millet and cowpea in Namibia
AU - Watanabe, Yoshinori
AU - Itanna, Fisseha
AU - Izumi, Yasuhiro
AU - Awala, Simon K.
AU - Fujioka, Yuichiro
AU - Tsuchiya, Kenta
AU - Iijima, Morio
PY - 2019/5/4
Y1 - 2019/5/4
N2 - The impoverished Namibian soils can very well be enriched with nutrients by applying cattle manure, especially when resource-poor farmers are unable to purchase expensive chemical fertilizers. In this study, effects of cattle manure on different cropping patterns, i.e., mono- and mixed-cropping of pearl millet (Pennisetum glaucum L.) and cowpea (Vigna unguiculata L.) were compared across three cropping seasons at manure application rates of 0, 31 and 62 Mg ha−1. The experimental plots were laid out in a randomized complete-block design with four replications. The parameters measured were growth and yield of the crops, soil organic carbon (SOC), total soil N, available soil P, and exchangeable soil K. The SOC was determined by the Black-Walkley protocol, total N by the modified Kjeldahl method, available P by the Olsen method, and exchangeable K by ammonium acetate extraction. Application of 31 Mg ha−1 cattle manure increased SOC, total soil N, available P, and exchangeable K 1.3, 1.2, 1.2, and 1.4 times, respectively, over the control; the respective increase by the addition of 62 Mg ha−1 was 1.7, 1.5, 1.3, and 2.1 times. However, differences between 31 and 62 Mg ha−1 manure were not significant for SOC, total soil N, and available P, except for exchangeable K. Both grain yield and biomass yield of pearl millet increased with the application of 31 Mg ha−1 manure, but declined with the application of 62 Mg ha−1 manure, whereas grain yield and biomass yield of cowpea declined with the addition of 62 Mg ha−1 manure. Both cowpea and pearl millet yielded more when intercropped than when grown as monocultures.
AB - The impoverished Namibian soils can very well be enriched with nutrients by applying cattle manure, especially when resource-poor farmers are unable to purchase expensive chemical fertilizers. In this study, effects of cattle manure on different cropping patterns, i.e., mono- and mixed-cropping of pearl millet (Pennisetum glaucum L.) and cowpea (Vigna unguiculata L.) were compared across three cropping seasons at manure application rates of 0, 31 and 62 Mg ha−1. The experimental plots were laid out in a randomized complete-block design with four replications. The parameters measured were growth and yield of the crops, soil organic carbon (SOC), total soil N, available soil P, and exchangeable soil K. The SOC was determined by the Black-Walkley protocol, total N by the modified Kjeldahl method, available P by the Olsen method, and exchangeable K by ammonium acetate extraction. Application of 31 Mg ha−1 cattle manure increased SOC, total soil N, available P, and exchangeable K 1.3, 1.2, 1.2, and 1.4 times, respectively, over the control; the respective increase by the addition of 62 Mg ha−1 was 1.7, 1.5, 1.3, and 2.1 times. However, differences between 31 and 62 Mg ha−1 manure were not significant for SOC, total soil N, and available P, except for exchangeable K. Both grain yield and biomass yield of pearl millet increased with the application of 31 Mg ha−1 manure, but declined with the application of 62 Mg ha−1 manure, whereas grain yield and biomass yield of cowpea declined with the addition of 62 Mg ha−1 manure. Both cowpea and pearl millet yielded more when intercropped than when grown as monocultures.
UR - http://www.scopus.com/inward/record.url?scp=85064832532&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85064832532&partnerID=8YFLogxK
U2 - 10.1080/15427528.2019.1604456
DO - 10.1080/15427528.2019.1604456
M3 - Article
AN - SCOPUS:85064832532
VL - 33
SP - 395
EP - 409
JO - Journal of Crop Improvement
JF - Journal of Crop Improvement
SN - 1542-7528
IS - 3
ER -