Cassava agronomy research in China
Through cooperation with CIAT, national programs in China have paid more and more attention to cassava agronomy research and a lot of progress has been made. This paper describes briefly the most common cropping systems and production practices presently used by farmers. It also reviews the results of research on soil/crop management, with emphasis on soil fertility maintenance and soil erosion control, during the past decade. In China, cassava is usually planted from Jan-May, while it is harvested from Nov-Mar. The plant population is about 10,000-12,000 plants/ha under normal conditions, while the population could increase to 15,000-18,000 plants/ha in poor soils. Results of soil erosion control trials showed that two treatments, i.e. no-tillage but making a planting hole (30x30 cm) by hoe, or complete land preparation followed by contour ridging, not only increased cassava yields, but also decreased soil erosion. However, soil loss was very serious with complete land preparation but without ridging. Long-term fertilization trials conducted in CATAS, GSCRI and UCRI, indicate that cassava yields increased significantly with the application of N and K. Increasing the N application from 50 to 200 kg/ha while maintaining a constant rate of 100 kg K2O and 50 kg P2Os/ha, cassava yields increased significantly, but the root starch content decreased. In contrast, both cassava yield and root starch content increased with an increase in K application from 50 kg to 200 kg K2O/ha, while maintaining a constant rate of 100 kg N and 50 kg P2Os/ha. Cassava intercropped with watermelon produced the highest economic returns, but soil erosion was controlled most efficiently by intercropping with peanut.
Main Authors: | , , , , , , |
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Format: | Book Chapter biblioteca |
Language: | English |
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International Center for Tropical Agriculture
1998
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Subjects: | manihot esculenta, varieties, breeding, cultural methods, crop yield, erosion, cropping systems, planting date, harvesting date, fertilizer application, sustainability, |
Online Access: | https://hdl.handle.net/10568/81969 http://ciat-library.ciat.cgiar.org/Articulos_Ciat/Digital/SB123.E9C.2_An_exchange_of_experiences_from_South_and_South_East_Asia.pdf#page=114 |
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dig-cgspace-10568-819692023-03-14T19:56:10Z Cassava agronomy research in China Zhang, Weite Lin, Xiong Li, Kaimian Juang, Jie Tian, Yinong Lee, Jun Fu, Quohui manihot esculenta varieties breeding cultural methods crop yield erosion cropping systems planting date harvesting date fertilizer application sustainability Through cooperation with CIAT, national programs in China have paid more and more attention to cassava agronomy research and a lot of progress has been made. This paper describes briefly the most common cropping systems and production practices presently used by farmers. It also reviews the results of research on soil/crop management, with emphasis on soil fertility maintenance and soil erosion control, during the past decade. In China, cassava is usually planted from Jan-May, while it is harvested from Nov-Mar. The plant population is about 10,000-12,000 plants/ha under normal conditions, while the population could increase to 15,000-18,000 plants/ha in poor soils. Results of soil erosion control trials showed that two treatments, i.e. no-tillage but making a planting hole (30x30 cm) by hoe, or complete land preparation followed by contour ridging, not only increased cassava yields, but also decreased soil erosion. However, soil loss was very serious with complete land preparation but without ridging. Long-term fertilization trials conducted in CATAS, GSCRI and UCRI, indicate that cassava yields increased significantly with the application of N and K. Increasing the N application from 50 to 200 kg/ha while maintaining a constant rate of 100 kg K2O and 50 kg P2Os/ha, cassava yields increased significantly, but the root starch content decreased. In contrast, both cassava yield and root starch content increased with an increase in K application from 50 kg to 200 kg K2O/ha, while maintaining a constant rate of 100 kg N and 50 kg P2Os/ha. Cassava intercropped with watermelon produced the highest economic returns, but soil erosion was controlled most efficiently by intercropping with peanut. 1998 2017-06-20T09:00:12Z 2017-06-20T09:00:12Z Book Chapter Zhang, Weite; Lin, Xiong; Li, Kaimian; Juang,Jie; Tian, Yinong; Lee, Jun; Fu, Quohui. 1998. Cassava agronomy research in China . In: Howeler, Reinhardt H. (ed.). Regional Workshop Cassava Breeding, Agronomy and Farmer Participatory Research in Asia (5, 1996, Hainan, China). Cassava breeding, agronomy and farmer participatory research in Asia: Proceedings . Centro Internacional de Agricultura Tropical (CIAT), Regional Cassava Program for Asia, Bangkok, TH. p. 191-210. https://hdl.handle.net/10568/81969 http://ciat-library.ciat.cgiar.org/Articulos_Ciat/Digital/SB123.E9C.2_An_exchange_of_experiences_from_South_and_South_East_Asia.pdf#page=114 en Open Access p. 191-210 application/pdf International Center for Tropical Agriculture Regional Cassava Program for Asia |
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manihot esculenta varieties breeding cultural methods crop yield erosion cropping systems planting date harvesting date fertilizer application sustainability manihot esculenta varieties breeding cultural methods crop yield erosion cropping systems planting date harvesting date fertilizer application sustainability Zhang, Weite Lin, Xiong Li, Kaimian Juang, Jie Tian, Yinong Lee, Jun Fu, Quohui Cassava agronomy research in China |
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Through cooperation with CIAT, national programs in China have paid more and more attention to cassava agronomy research and a lot of progress has been made. This paper describes briefly the most common cropping systems and production practices presently used by farmers. It also reviews the results of research on soil/crop management, with emphasis on soil fertility maintenance and soil erosion control, during the past decade.
In China, cassava is usually planted from Jan-May, while it is harvested from Nov-Mar. The plant population is about 10,000-12,000 plants/ha under normal conditions, while the population could increase to 15,000-18,000 plants/ha in poor soils.
Results of soil erosion control trials showed that two treatments, i.e. no-tillage but making a planting hole (30x30 cm) by hoe, or complete land preparation followed by contour ridging, not only increased cassava yields, but also decreased soil erosion. However, soil loss was very serious with complete land preparation but without ridging. Long-term fertilization trials conducted in CATAS, GSCRI and UCRI, indicate that cassava yields increased significantly with the application of N and K. Increasing the N application from 50 to 200 kg/ha while maintaining a constant rate of 100 kg K2O and 50 kg P2Os/ha, cassava yields increased significantly, but the root starch content decreased. In contrast, both cassava yield and root starch content increased with an increase in K application from 50 kg to 200 kg K2O/ha, while maintaining a constant rate of 100 kg N and 50 kg P2Os/ha. Cassava intercropped with watermelon produced the highest economic returns, but soil erosion was controlled most efficiently by intercropping with peanut. |
format |
Book Chapter |
topic_facet |
manihot esculenta varieties breeding cultural methods crop yield erosion cropping systems planting date harvesting date fertilizer application sustainability |
author |
Zhang, Weite Lin, Xiong Li, Kaimian Juang, Jie Tian, Yinong Lee, Jun Fu, Quohui |
author_facet |
Zhang, Weite Lin, Xiong Li, Kaimian Juang, Jie Tian, Yinong Lee, Jun Fu, Quohui |
author_sort |
Zhang, Weite |
title |
Cassava agronomy research in China |
title_short |
Cassava agronomy research in China |
title_full |
Cassava agronomy research in China |
title_fullStr |
Cassava agronomy research in China |
title_full_unstemmed |
Cassava agronomy research in China |
title_sort |
cassava agronomy research in china |
publisher |
International Center for Tropical Agriculture |
publishDate |
1998 |
url |
https://hdl.handle.net/10568/81969 http://ciat-library.ciat.cgiar.org/Articulos_Ciat/Digital/SB123.E9C.2_An_exchange_of_experiences_from_South_and_South_East_Asia.pdf#page=114 |
work_keys_str_mv |
AT zhangweite cassavaagronomyresearchinchina AT linxiong cassavaagronomyresearchinchina AT likaimian cassavaagronomyresearchinchina AT juangjie cassavaagronomyresearchinchina AT tianyinong cassavaagronomyresearchinchina AT leejun cassavaagronomyresearchinchina AT fuquohui cassavaagronomyresearchinchina |
_version_ |
1779050676700053504 |