Institutional belief · Agriculture
Close planting and deep plowing
Very dense planting and unusually deep plowing were treated as broadly applicable techniques that would sharply increase agricultural yields.
1 episode
Current understanding
Current understanding
Planting density and tillage have crop-, soil-, and climate-specific optima. More plants per area or deeper tillage do not automatically produce higher yields; excessive density increases competition for light, water, and nutrients, while overly deep or poorly matched tillage can damage soil structure and waste labor.
Institutional episode
People's Republic of China
During the Great Leap Forward, deep plowing and close planting were elevated into nationally promoted agricultural methods and incorporated into Mao’s agricultural “eight-point charter.” A 29 August 1958 Central Committee directive declared deep plowing the central technique for increasing yields and called for a mass campaign. Authorities pushed these methods far beyond locally appropriate conditions. Historical economic research identifies centrally promoted deep plowing and close planting among the policies that reduced agricultural output, alongside several other major causes of the crisis.
Institutions
- Central Committee of the Chinese Communist Party
- Ministry of Agriculture of the People’s Republic of China
Documented consequences
- Mandatory or heavily pressured cultivation campaigns
- Reduced yields in some regions
- Misallocation of agricultural labor
Institutional machinery
The strongest identifiable national carrier was the Chinese Communist Party Central Committee. Its 29 August 1958 directive declared deep plowing the central agricultural yield-increasing technique and ordered a Party-wide, mass campaign; People’s Daily reported that the directive had been approved at an expanded Politburo meeting. The Ministry of Agriculture participated in central agricultural policy formation and national technical promotion. Provincial party committees, local authorities and people’s communes implemented these campaigns, but those distributed layers are described as machinery rather than listed as if they were a single institution.
Sources and what they establish
- 中共中央关于深耕和改良土壤的指示 — 29 August 1958Xinhua reproduction via China Economic Net
Reproduces the 29 August 1958 CCP Central Committee directive declaring deep plowing the central agricultural yield-increasing technique and calling for Party-wide and mass mobilization to carry out deep plowing and soil improvement.
- The Ministry of Agriculture and Rural and Agricultural Policies in 1958Oxford University Press
Examines central agricultural policy formation and implementation during the Great Leap Forward and the Ministry of Agriculture’s role in the 1958 campaign.
- Feeding China — The Experience since 1949Oxford University Press
Identifies deep plowing and close planting as centrally promoted innovations carried beyond rational limits that reduced output during the Great Leap Forward.
Last reviewed: 23/08/2026