tailieunhanh - Nghiên cứu nông nghiệp: Major Cropping Soils and Soil Constraints to Productivity of Major Upland Crops Grown by Smallholders - Southern Central Coast

Các hạn chế đất và quản lý trọn gói (người vô dụng) đã được phát triển xác định các hạn chế đất để sản xuất cây trồng bằng cách xem xét một loạt các đất chính tài sản (Moody và Phan Thị Công 2008; Moody et al 2008). Một khi các hạn chế đã được xác định, thực hành quản lý có cải thiện hoặc sửa đổi những khó khăn này có thể được xây dựng. Cây trồng khác nhau về sự khoan dung của họ để hạn chế đất và một tài sản đất hạn chế năng suất của một cây trồng có thể. | 009 06 VIE Six-monthly Report- October 2008 Attachment 1 009 06 VIE Improving capability of provincial extensionists for assessing soil constraints to sustainable production through the use of the SCAMP decision support system. Major Cropping Soils and Soil Constraints to Productivity of Major Upland Crops Grown by Smallholders 2. Southern Central Coast PW MoodyA and Phan Thi CongB A Queensland Department of Natural Resources and Water Indooroopilly Qld 4068 Australia B Institute of Agricultural Sciences of Southern Vietnam Ho Chi Minh City Vietnam 1. Introduction The Soil Constraints and Management Package SCAMP has been developed to identify soil constraints to crop production by considering a range of key soil properties Moody and Phan Thi Cong 2008 Moody et al. 2008 . Once these constraints have been identified management practices that ameliorate or modify these constraints can be formulated. Crops vary in their tolerance to soil constraints and a soil property limiting the productivity of one crop may not be a limitation to the productivity of another crop. Therefore once the constraints of a particular soil type have been identified the soil can then be assessed for its ability to potentially support the production of specific crops. The objectives of this series of reports are to review existing information on the identification and extent of upland cropping soils in focus provinces of Vietnam. identify the major soils used for smallholder cropping in the focus provinces and determine their constraints by the application of SCAMP. identify the major crops cropping systems used by smallholders in the focus provinces and document the specific soil requirements of these crops cropping systems. link soil constraints to the soil requirements of the major upland crops and develop management guidelines for the management of specific soil types for specific crops. Part 2 focuses on the soils and cropping systems of the Southern Central Coast comprising Quang Nam .