In the Philippine legal landscape, agricultural tenancy is governed by a robust framework aimed at promoting social justice and protecting the rights of those who till the land. At the heart of this framework is the principle of Security of Tenure, which ensures that an agricultural tenant or lessee cannot be dispossessed of their holding except for specific causes provided by law and only after a final and executory order from the proper administrative or judicial body.

The primary statutes governing these relations are Republic Act No. 3844 (Agricultural Land Reform Code), as amended by Republic Act No. 6389, and Republic Act No. 6657 (Comprehensive Agrarian Reform Law of 1988).

The Concept of Security of Tenure

Under Philippine agrarian law, the expiration of a lease contract or the sale/alienation of the land does not terminate the tenancy relationship. The new owner is subrogated to the rights and obligations of the former landowner. A tenant can only be ejected if the landowner proves the existence of "just cause" through a formal petition filed with the Department of Agrarian Reform Adjudication Board (DARAB).

Valid Grounds for Ejectment

The law enumerates specific, exclusive grounds under which a landowner may seek the dispossession of an agricultural tenant.

1. Non-Payment of Lease Rental

The failure of the tenant to pay the agreed lease rental is a primary ground for ejectment. However, this is subject to strict conditions:

Willfulness: The non-payment must be deliberate or intentional.
Exclusions: If the failure to pay is due to crop failure, force majeure (fortuitous events), or a natural disaster that results in the loss of at least 75% of the harvest, the tenant cannot be ejected.
Burden of Proof: The landowner must prove that the tenant had the capacity to pay but chose not to.

2. Failure to Follow Proven Farm Practices

A tenant is required to cultivate the land in a manner that preserves its productivity. Ejectment may be sought if the tenant fails to follow "proven farm practices" which have been shown to increase the efficiency and value of the land.

The landowner must demonstrate that the tenant's refusal to adopt these practices was unjustified and resulted in a significant decline in production.

3. Substantial Injury to the Land

If the tenant, through negligence or a willful act, causes substantial and permanent injury to the land, the tenancy may be terminated. This includes actions that impair the land's long-term agricultural productivity or structural integrity.

4. Unauthorized Use of the Land

The tenant is obligated to use the land for the specific agricultural purpose agreed upon in the leasehold contract. Using the land for a purpose other than agriculture, or for a different type of crop that violates the agreement, may constitute a ground for dispossession.

5. Employment of a Sub-Tenant

Agricultural tenancy is personal. The law prohibits the tenant from employing a sub-lessee or a sub-tenant to do the actual farming. If the tenant ceases to be the actual tiller and instead acts as a "middleman" by sub-leasing the land to another, the landowner may file for ejectment.

6. Conversion of Land Use

While not a "fault" of the tenant, the landowner may seek ejectment if the land is legally converted to non-agricultural purposes (e.g., residential, commercial, or industrial).

Requirement: This requires a conversion order from the Department of Agrarian Reform (DAR).
Disturbance Compensation: In cases of legal conversion, the tenant is entitled to Disturbance Compensation, which is typically equivalent to five times the average gross harvest on the landholding during the last five preceding calendar years.

Extinguished Grounds: Personal Cultivation

Historically, under the original RA 3844, a landowner could eject a tenant if they intended to personally cultivate the land. However, Republic Act No. 6389 abolished "personal cultivation" as a valid ground for ejectment. Today, a landowner cannot remove a tenant simply because they want to farm the land themselves or give it to a family member.

Procedural Requirements and Jurisdiction

The process of ejecting an agricultural tenant is strictly administrative and quasi-judicial:

Mediation: Parties are generally required to undergo mediation at the Barangay Agrarian Reform Committee (BARC) or through DAR municipal offices.
DARAB Jurisdiction: If mediation fails, the landowner must file a formal petition with the Provincial Agrarian Reform Adjudicator (PARAD) or the DARAB.
Burden of Proof: The burden rests entirely on the landowner to prove the existence of the ground for ejectment by substantial evidence.
Finality: The tenant cannot be physically removed from the land until a final and executory decision is issued. Any "self-help" or forcible entry by the landowner is illegal and may result in criminal and administrative liability.

Conclusion

The legal grounds for the ejectment of agricultural tenants in the Philippines are narrow and strictly construed against the landowner. This bias reflects the state's policy to protect the security of tenure of the actual tillers of the soil. Unless a tenant has willfully defaulted on rentals, damaged the land, or violated the core agricultural purpose of the lease, their right to remain on the land persists even against the ownership rights of the title holder.